USD746974S1 - Exhalation valve flap - Google Patents

Exhalation valve flap Download PDF

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Publication number
USD746974S1
USD746974S1 US29460794 US201329460794F USD746974S1 US D746974 S1 USD746974 S1 US D746974S1 US 29460794 US29460794 US 29460794 US 201329460794 F US201329460794 F US 201329460794F US D746974 S1 USD746974 S1 US D746974S1
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US
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Grant
Patent type
Design
Prior art keywords
view
fig
valve
flap
patent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
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US29460794
Inventor
Caroline M. Ylitalo
Philip G. Martin
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3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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Publication date
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The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawings will be provided by the Office upon request and payment of the necessary fee.

FIG. 1 is a perspective view, showing the new design for an exhalation valve flap viewed from a first angle;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof, the left side view being a mirror image of the right side;

FIG. 4 is a top edge view thereof; and,

FIG. 5 is a bottom edge view thereof.

Claims (1)

    CLAIM
  1. The ornamental design for an exhalation valve flap, as shown and described.
US29460794 2013-07-15 2013-07-15 Exhalation valve flap Active USD746974S1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29460794 USD746974S1 (en) 2013-07-15 2013-07-15 Exhalation valve flap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29460794 USD746974S1 (en) 2013-07-15 2013-07-15 Exhalation valve flap
JP2014000621F JP1517022S (en) 2013-07-15 2014-01-15

Publications (1)

Publication Number Publication Date
USD746974S1 true USD746974S1 (en) 2016-01-05

Family

ID=53486517

Family Applications (1)

Application Number Title Priority Date Filing Date
US29460794 Active USD746974S1 (en) 2013-07-15 2013-07-15 Exhalation valve flap

Country Status (2)

Country Link
US (1) USD746974S1 (en)
JP (1) JP1517022S (en)

Citations (84)

* Cited by examiner, † Cited by third party
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US2072516A (en) 1934-02-08 1937-03-02 American Mach & Foundry Insert attachment for wrapping machines
US2230770A (en) 1939-12-09 1941-02-04 Cons Car Heating Co Inc Circuit controller
US2895472A (en) 1956-01-05 1959-07-21 Electric Storage Battery Co Respirator
US3059637A (en) * 1961-01-24 1962-10-23 Voit Rubber Corp Non-return valve for swim mask or face plate
USD249279S (en) * 1975-09-01 1978-09-05 Exhaust valve of respiratory mask
US4630604A (en) 1985-04-09 1986-12-23 Siebe North, Inc. Valve assembly for a replaceable filter respirator
US4790306A (en) 1987-09-25 1988-12-13 Minnesota Mining And Manufacturing Company Respiratory mask having a rigid or semi-rigid, insert-molded filtration element and method of making
US4807619A (en) 1986-04-07 1989-02-28 Minnesota Mining And Manufacturing Company Resilient shape-retaining fibrous filtration face mask
US4827924A (en) 1987-03-02 1989-05-09 Minnesota Mining And Manufacturing Company High efficiency respirator
US4873972A (en) 1988-02-04 1989-10-17 Moldex/Metric Products, Inc. Disposable filter respirator with inner molded face flange
US4934362A (en) 1987-03-26 1990-06-19 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US4971052A (en) 1988-07-26 1990-11-20 Racal Safety Limited Breathing apparatus
US4974586A (en) 1986-11-06 1990-12-04 Moldex/Metric Products, Inc. Breathing mask
US4981134A (en) 1990-01-16 1991-01-01 Courtney Darryl W Filtering face mask with inhalation/exhalation check valves
US5035239A (en) 1988-06-25 1991-07-30 Racal Safety Limited Powered respirators
US5062421A (en) 1987-11-16 1991-11-05 Minnesota Mining And Manufacturing Company Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making
US5103337A (en) 1990-07-24 1992-04-07 The Dow Chemical Company Infrared reflective optical interference film
US5217794A (en) 1991-01-22 1993-06-08 The Dow Chemical Company Lamellar polymeric body
US5325892A (en) 1992-05-29 1994-07-05 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US5360659A (en) 1993-05-24 1994-11-01 The Dow Chemical Company Two component infrared reflecting film
US5394568A (en) 1993-01-28 1995-03-07 Minnesota Mining And Manufacturing Company Molded head harness
US5464010A (en) 1993-09-15 1995-11-07 Minnesota Mining And Manufacturing Company Convenient "drop-down" respirator harness structure and method of use
US5486949A (en) 1989-06-20 1996-01-23 The Dow Chemical Company Birefringent interference polarizer
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US5509436A (en) 1992-05-29 1996-04-23 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US5617849A (en) 1995-09-12 1997-04-08 Minnesota Mining And Manufacturing Company Respirator having thermochromic fit-indicating seal
US5687767A (en) 1995-08-04 1997-11-18 Racal Health & Safety Limited Uni-directional fluid valve
US5819731A (en) 1997-01-03 1998-10-13 Minnesota Mining And Manufacturing Company Face mask having a combination adjustable ear loop and drop down band
US5825543A (en) 1996-02-29 1998-10-20 Minnesota Mining And Manufacturing Company Diffusely reflecting polarizing element including a first birefringent phase and a second phase
US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
US5924420A (en) 1996-09-24 1999-07-20 Minnesota Mining And Manufacturing Company Full face respirator mask having integral connectors disposed in lens area
US6045894A (en) 1998-01-13 2000-04-04 3M Innovative Properties Company Clear to colored security film
US6047698A (en) * 1998-08-20 2000-04-11 Moldex-Metric, Inc. Unidirectional fluid valve
USD424688S (en) 1996-09-06 2000-05-09 3M Innovative Properties Company Respiratory protection mask
US6062221A (en) 1997-10-03 2000-05-16 3M Innovative Properties Company Drop-down face mask assembly
US6123077A (en) 1995-03-09 2000-09-26 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
US6125849A (en) * 1997-11-11 2000-10-03 3M Innovative Properties Company Respiratory masks having valves and other components attached to the mask by a printed patch of adhesive
USD431647S (en) 1996-09-06 2000-10-03 3M Innovative Properties Company Personal respiratory protection device having an exhalation valve
US6157490A (en) 1998-01-13 2000-12-05 3M Innovative Properties Company Optical film with sharpened bandedge
US6179948B1 (en) 1998-01-13 2001-01-30 3M Innovative Properties Company Optical film and process for manufacture thereof
US6186140B1 (en) 1997-03-14 2001-02-13 3M Innovative Properties Company Respiratory filter element having a storage device for keeping track of filter usage and a system for use therewith
US6207260B1 (en) 1998-01-13 2001-03-27 3M Innovative Properties Company Multicomponent optical body
USD443927S1 (en) 1999-02-17 2001-06-19 3M Innovative Properties Company Respiratory mask
US6277178B1 (en) 1995-01-20 2001-08-21 3M Innovative Properties Company Respirator and filter cartridge
USD448472S1 (en) 1999-02-17 2001-09-25 3M Innovative Properties Company Respiratory mask
US6332465B1 (en) 1999-06-02 2001-12-25 3M Innovative Properties Company Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure
US6352761B1 (en) 1998-01-13 2002-03-05 3M Innovative Properties Company Modified copolyesters and improved multilayer reflective films
US6460539B1 (en) 2000-09-21 2002-10-08 3M Innovative Properties Company Respirator that includes an integral filter element, an exhalation valve, and impactor element
USD464725S1 (en) 2000-08-03 2002-10-22 3M Innovative Properties Company Nose portion of a powered air-purifying respirator body
US6484722B2 (en) 1995-09-11 2002-11-26 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
US20020195109A1 (en) 2001-06-25 2002-12-26 3M Innovative Properties Company Respirator valve
US6531230B1 (en) 1998-01-13 2003-03-11 3M Innovative Properties Company Color shifting film
US6783349B2 (en) 1998-01-13 2004-08-31 3M Innovative Properties Company Apparatus for making multilayer optical films
US20040261795A1 (en) 2002-08-28 2004-12-30 Brunell Robert A. Respirator mask and valve
US6939499B2 (en) 2001-05-31 2005-09-06 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
US7013895B2 (en) 2001-11-21 2006-03-21 3M Innovative Properties Company Exhalation and inhalation valves that have a multi-layered flexible flap
US7019905B2 (en) 2003-12-30 2006-03-28 3M Innovative Properties Company Multilayer reflector with suppression of high order reflections
US7069931B2 (en) 1999-10-19 2006-07-04 3M Innovative Properties Company Method of making a filtering face mask that has an exhalation valve attached thereto
US7117868B1 (en) 1992-05-29 2006-10-10 3M Innovative Properties Company Fibrous filtration face mask having a new unidirectional fluid valve
US7188622B2 (en) 2003-06-19 2007-03-13 3M Innovative Properties Company Filtering face mask that has a resilient seal surface in its exhalation valve
US7195015B2 (en) 2001-06-29 2007-03-27 Koken, Ltd. Breathing apparatus
US7256936B2 (en) 2002-12-31 2007-08-14 3M Innovative Properties Company Optical polarizing films with designed color shifts
US7302951B2 (en) 2001-06-25 2007-12-04 3M Innovative Properties Company Unidirectional respirator valve
US7316558B2 (en) 2002-11-27 2008-01-08 3M Innovative Properties Company Devices for stretching polymer films
US20080178884A1 (en) 2007-01-25 2008-07-31 Gerson Ronald L Fluid Valve with Center Post
US7503326B2 (en) 2005-12-22 2009-03-17 3M Innovative Properties Company Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap
US20090078264A1 (en) 2007-09-20 2009-03-26 3M Innovative Properties Company Filtering face-piece respirator having a frame for supporting the exhalation valve
US20090133700A1 (en) 2007-11-27 2009-05-28 3M Innovative Properties Company Face mask with unidirectional valve
US20090235934A1 (en) 2008-03-24 2009-09-24 3M Innovative Properties Company Filtering face-piece respirator having an integrally-joined exhalation valve
US20100065058A1 (en) 2008-09-18 2010-03-18 Moldex-Metric, Inc. Full face respirator mask
US20100083967A1 (en) 2006-10-04 2010-04-08 Koken Ltd. Mask device with blower
WO2010075340A1 (en) 2008-12-22 2010-07-01 3M Innovative Properties Company Multilayer optical films having side-by-side mirror/polarizer zones
USD657053S1 (en) * 2009-09-22 2012-04-03 World Wide Welding, Inc. Dust mask
USD657052S1 (en) * 2009-09-22 2012-04-03 World Wide Welding, Inc. Dust mask
USRE43289E1 (en) * 1995-08-04 2012-04-03 3M Innovative Properties Company Uni-directional fluid valve
US20120167890A1 (en) 2010-12-29 2012-07-05 3M Innovative Properties Company Respirator having valve with an ablated flap
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
USD676527S1 (en) 2009-12-16 2013-02-19 3M Innovative Properties Company Unidirectional valve
US20130094088A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Diffuse reflective optical films with spatially selective birefringence reduction
US20130095434A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Multi-layer articles capable of forming color images and method of forming color images
US20130094084A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Mask processing using films with spatially selective birefringence reduction
US20130095435A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Multi-layer articles capable of forming color images and methods of forming color images
US20130094085A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Retarder film combinations with spatially selective birefringence reduction

Patent Citations (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1867478A (en) * 1927-08-12 1932-07-12 Firm Dragerwerk Heinr & Bernh Nonreturn valve for breathing appliances
US2072516A (en) 1934-02-08 1937-03-02 American Mach & Foundry Insert attachment for wrapping machines
US2230770A (en) 1939-12-09 1941-02-04 Cons Car Heating Co Inc Circuit controller
US2895472A (en) 1956-01-05 1959-07-21 Electric Storage Battery Co Respirator
US3059637A (en) * 1961-01-24 1962-10-23 Voit Rubber Corp Non-return valve for swim mask or face plate
USD249279S (en) * 1975-09-01 1978-09-05 Exhaust valve of respiratory mask
US4630604A (en) 1985-04-09 1986-12-23 Siebe North, Inc. Valve assembly for a replaceable filter respirator
US4807619A (en) 1986-04-07 1989-02-28 Minnesota Mining And Manufacturing Company Resilient shape-retaining fibrous filtration face mask
US4974586A (en) 1986-11-06 1990-12-04 Moldex/Metric Products, Inc. Breathing mask
US4827924A (en) 1987-03-02 1989-05-09 Minnesota Mining And Manufacturing Company High efficiency respirator
US4934362A (en) 1987-03-26 1990-06-19 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US4790306A (en) 1987-09-25 1988-12-13 Minnesota Mining And Manufacturing Company Respiratory mask having a rigid or semi-rigid, insert-molded filtration element and method of making
US5062421A (en) 1987-11-16 1991-11-05 Minnesota Mining And Manufacturing Company Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making
US4873972A (en) 1988-02-04 1989-10-17 Moldex/Metric Products, Inc. Disposable filter respirator with inner molded face flange
US5035239A (en) 1988-06-25 1991-07-30 Racal Safety Limited Powered respirators
US4971052A (en) 1988-07-26 1990-11-20 Racal Safety Limited Breathing apparatus
US5486949A (en) 1989-06-20 1996-01-23 The Dow Chemical Company Birefringent interference polarizer
US4981134A (en) 1990-01-16 1991-01-01 Courtney Darryl W Filtering face mask with inhalation/exhalation check valves
US5103337A (en) 1990-07-24 1992-04-07 The Dow Chemical Company Infrared reflective optical interference film
US5217794A (en) 1991-01-22 1993-06-08 The Dow Chemical Company Lamellar polymeric body
US7493900B1 (en) 1992-05-29 2009-02-24 3M Innovative Properties Company Fibrous filtration face mask having a new unidirectional fluid valve
US6854463B2 (en) 1992-05-29 2005-02-15 3M Innovative Properties Company Filtering face mask that has a new exhalation valve
US7117868B1 (en) 1992-05-29 2006-10-10 3M Innovative Properties Company Fibrous filtration face mask having a new unidirectional fluid valve
US6843248B2 (en) 1992-05-29 2005-01-18 3M Innovative Properties Company Filtering face mask that has a new exhalation valve
US7311104B2 (en) 1992-05-29 2007-12-25 3M Innovative Properties Company Method of making a filtering face mask that has an exhalation valve
US5325892A (en) 1992-05-29 1994-07-05 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US7428903B1 (en) 1992-05-29 2008-09-30 3M Innovative Properties Company Fibrous filtration face mask having a new unidirectional fluid valve
US5509436A (en) 1992-05-29 1996-04-23 Minnesota Mining And Manufacturing Company Unidirectional fluid valve
US5505197A (en) 1992-12-11 1996-04-09 Modex/Metric Products, Inc. Respirator mask with tapered filter mount and valve aligning pins and ears
US5394568A (en) 1993-01-28 1995-03-07 Minnesota Mining And Manufacturing Company Molded head harness
US5360659A (en) 1993-05-24 1994-11-01 The Dow Chemical Company Two component infrared reflecting film
US6119692A (en) 1993-09-15 2000-09-19 Minnesota Mining And Manufacturing Company Convenient "drop-down" respirator
US5464010A (en) 1993-09-15 1995-11-07 Minnesota Mining And Manufacturing Company Convenient "drop-down" respirator harness structure and method of use
US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
US6277178B1 (en) 1995-01-20 2001-08-21 3M Innovative Properties Company Respirator and filter cartridge
US6123077A (en) 1995-03-09 2000-09-26 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
USRE43289E1 (en) * 1995-08-04 2012-04-03 3M Innovative Properties Company Uni-directional fluid valve
US5687767A (en) 1995-08-04 1997-11-18 Racal Health & Safety Limited Uni-directional fluid valve
USRE37974E1 (en) 1995-08-04 2003-02-04 3M Innovative Properties Company Uni-directional fluid valve
US6484722B2 (en) 1995-09-11 2002-11-26 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
US5617849A (en) 1995-09-12 1997-04-08 Minnesota Mining And Manufacturing Company Respirator having thermochromic fit-indicating seal
US5825543A (en) 1996-02-29 1998-10-20 Minnesota Mining And Manufacturing Company Diffusely reflecting polarizing element including a first birefringent phase and a second phase
USD389239S (en) 1996-08-19 1998-01-13 Moldex-Metric, Inc. Valve
USD431647S (en) 1996-09-06 2000-10-03 3M Innovative Properties Company Personal respiratory protection device having an exhalation valve
USD424688S (en) 1996-09-06 2000-05-09 3M Innovative Properties Company Respiratory protection mask
US5924420A (en) 1996-09-24 1999-07-20 Minnesota Mining And Manufacturing Company Full face respirator mask having integral connectors disposed in lens area
US6095143A (en) 1997-01-03 2000-08-01 Minnesota Mining And Manufacturing Company Face mask having a combination adjustable ear loop and drop down band
US5819731A (en) 1997-01-03 1998-10-13 Minnesota Mining And Manufacturing Company Face mask having a combination adjustable ear loop and drop down band
US6186140B1 (en) 1997-03-14 2001-02-13 3M Innovative Properties Company Respiratory filter element having a storage device for keeping track of filter usage and a system for use therewith
US6062221A (en) 1997-10-03 2000-05-16 3M Innovative Properties Company Drop-down face mask assembly
US6457473B1 (en) 1997-10-03 2002-10-01 3M Innovative Properties Company Drop-down face mask assembly
US6125849A (en) * 1997-11-11 2000-10-03 3M Innovative Properties Company Respiratory masks having valves and other components attached to the mask by a printed patch of adhesive
US6179948B1 (en) 1998-01-13 2001-01-30 3M Innovative Properties Company Optical film and process for manufacture thereof
US6531230B1 (en) 1998-01-13 2003-03-11 3M Innovative Properties Company Color shifting film
US6157490A (en) 1998-01-13 2000-12-05 3M Innovative Properties Company Optical film with sharpened bandedge
US6207260B1 (en) 1998-01-13 2001-03-27 3M Innovative Properties Company Multicomponent optical body
US6045894A (en) 1998-01-13 2000-04-04 3M Innovative Properties Company Clear to colored security film
US6352761B1 (en) 1998-01-13 2002-03-05 3M Innovative Properties Company Modified copolyesters and improved multilayer reflective films
US6783349B2 (en) 1998-01-13 2004-08-31 3M Innovative Properties Company Apparatus for making multilayer optical films
USD413166S (en) * 1998-03-02 1999-08-24 Louis M. Gerson Co., Inc. Face mask breathing valve
US6047698A (en) * 1998-08-20 2000-04-11 Moldex-Metric, Inc. Unidirectional fluid valve
USD448472S1 (en) 1999-02-17 2001-09-25 3M Innovative Properties Company Respiratory mask
USD443927S1 (en) 1999-02-17 2001-06-19 3M Innovative Properties Company Respiratory mask
US6332465B1 (en) 1999-06-02 2001-12-25 3M Innovative Properties Company Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure
US7069931B2 (en) 1999-10-19 2006-07-04 3M Innovative Properties Company Method of making a filtering face mask that has an exhalation valve attached thereto
USD464725S1 (en) 2000-08-03 2002-10-22 3M Innovative Properties Company Nose portion of a powered air-purifying respirator body
US6460539B1 (en) 2000-09-21 2002-10-08 3M Innovative Properties Company Respirator that includes an integral filter element, an exhalation valve, and impactor element
US6939499B2 (en) 2001-05-31 2005-09-06 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
US20020195109A1 (en) 2001-06-25 2002-12-26 3M Innovative Properties Company Respirator valve
US7302951B2 (en) 2001-06-25 2007-12-04 3M Innovative Properties Company Unidirectional respirator valve
US7195015B2 (en) 2001-06-29 2007-03-27 Koken, Ltd. Breathing apparatus
US7028689B2 (en) 2001-11-21 2006-04-18 3M Innovative Properties Company Filtering face mask that uses an exhalation valve that has a multi-layered flexible flap
US7013895B2 (en) 2001-11-21 2006-03-21 3M Innovative Properties Company Exhalation and inhalation valves that have a multi-layered flexible flap
US20040261795A1 (en) 2002-08-28 2004-12-30 Brunell Robert A. Respirator mask and valve
US7316558B2 (en) 2002-11-27 2008-01-08 3M Innovative Properties Company Devices for stretching polymer films
US7256936B2 (en) 2002-12-31 2007-08-14 3M Innovative Properties Company Optical polarizing films with designed color shifts
US7188622B2 (en) 2003-06-19 2007-03-13 3M Innovative Properties Company Filtering face mask that has a resilient seal surface in its exhalation valve
US7019905B2 (en) 2003-12-30 2006-03-28 3M Innovative Properties Company Multilayer reflector with suppression of high order reflections
US7503326B2 (en) 2005-12-22 2009-03-17 3M Innovative Properties Company Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap
US20100083967A1 (en) 2006-10-04 2010-04-08 Koken Ltd. Mask device with blower
US20080178884A1 (en) 2007-01-25 2008-07-31 Gerson Ronald L Fluid Valve with Center Post
US20090078264A1 (en) 2007-09-20 2009-03-26 3M Innovative Properties Company Filtering face-piece respirator having a frame for supporting the exhalation valve
US20090133700A1 (en) 2007-11-27 2009-05-28 3M Innovative Properties Company Face mask with unidirectional valve
US20090235934A1 (en) 2008-03-24 2009-09-24 3M Innovative Properties Company Filtering face-piece respirator having an integrally-joined exhalation valve
US20100065058A1 (en) 2008-09-18 2010-03-18 Moldex-Metric, Inc. Full face respirator mask
US20110255163A1 (en) 2008-12-22 2011-10-20 William Ward Merrill Internally patterned multilayer optical films using spatially selective birefringence reduction
WO2010075373A1 (en) 2008-12-22 2010-07-01 3M Innovative Properties Company Multilayer optical films suitable for bi-level internal patterning
WO2010075383A1 (en) 2008-12-22 2010-07-01 3M Innovative Properties Company Multilayer optical films having side-by-side polarizer/polarizer zones
WO2010075363A1 (en) 2008-12-22 2010-07-01 3M Innovative Properties Company Internally patterned multilayer optical films with multiple birefringent layers
US20110249332A1 (en) 2008-12-22 2011-10-13 William Ward Merrill Multilayer optical films having side-by-side mirror/polarizer zones
WO2010075340A1 (en) 2008-12-22 2010-07-01 3M Innovative Properties Company Multilayer optical films having side-by-side mirror/polarizer zones
WO2010075357A1 (en) 2008-12-22 2010-07-01 3M Innovative Properties Company Internally patterned multilayer optical films using spatially selective birefringence reduction
US20110286095A1 (en) 2008-12-22 2011-11-24 William Ward Merrill Multilayer optical films having side-by-side polarizer/polarizer zones
US20110255167A1 (en) 2008-12-22 2011-10-20 3M Innovative Properties Company Multilayer optical films suitable for bi-level internal patterning
USD657053S1 (en) * 2009-09-22 2012-04-03 World Wide Welding, Inc. Dust mask
USD657052S1 (en) * 2009-09-22 2012-04-03 World Wide Welding, Inc. Dust mask
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
USD676527S1 (en) 2009-12-16 2013-02-19 3M Innovative Properties Company Unidirectional valve
US20130095435A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Multi-layer articles capable of forming color images and methods of forming color images
US20130094088A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Diffuse reflective optical films with spatially selective birefringence reduction
US20130095434A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Multi-layer articles capable of forming color images and method of forming color images
US20130094084A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Mask processing using films with spatially selective birefringence reduction
US20130094085A1 (en) 2010-06-30 2013-04-18 3M Innovative Properties Company Retarder film combinations with spatially selective birefringence reduction
US20120167890A1 (en) 2010-12-29 2012-07-05 3M Innovative Properties Company Respirator having valve with an ablated flap

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