GB1374929A - Grid module in or for a suspended ceiling system - Google Patents
Grid module in or for a suspended ceiling systemInfo
- Publication number
- GB1374929A GB1374929A GB777373A GB777373A GB1374929A GB 1374929 A GB1374929 A GB 1374929A GB 777373 A GB777373 A GB 777373A GB 777373 A GB777373 A GB 777373A GB 1374929 A GB1374929 A GB 1374929A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carry
- carried
- partition
- ducts
- supporting
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/064—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising extruded supporting beams
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H1/00—Curtain suspension devices
- A47H1/04—Curtain rails
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H1/00—Curtain suspension devices
- A47H1/10—Means for mounting curtain rods or rails
- A47H1/104—Means for mounting curtain rods or rails for mounting curtain rails
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/006—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for hanging lighting fixtures or other appliances to the framework of the ceiling
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/008—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for connecting partition walls or panels to the ceilings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/12—Connections between non-parallel members of the supporting construction
- E04B9/14—Connections between non-parallel members of the supporting construction all the members being discontinuous and laying at least partly in the same plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/28—Installations of cables, lines, or separate protective tubing therefor in conduits or ducts pre-established in walls, ceilings or floors
- H02G3/281—Installations of cables, lines, or separate protective tubing therefor in conduits or ducts pre-established in walls, ceilings or floors in ceilings
Abstract
1374929 Suspended ceilings BAJER INDUSTRIES Inc 16 Feb 1973 [1 March 1972] 7773/73 Heading E1W A framing member for supporting ceiling tiles, and suitable for various other functions, comprises a generally H-sectioned member 19, preferably extruded, with at least one lower external horizontal flange e.g. 22 for supporting tiles 23, and two pairs of horizontallyaligned upper internal flanges, e.g. 34, 134. An upper channel 49 may be dipped in to carry ducts 48, or a lower trim strip (Fig. 1, not shown) screwed on to carry ducts internally. A rolling partition 54 may be carried by an edge framing member (Fig. 3), or a ventilation duct 92 carried above and a deflector strip 99 below, (Fig. 14). An inverted channel (e.g. (107), Fig. 15, not shown) may be carried below to receive the upper edge of a partition panel (91), and a partition post 83 may carry a spring-loaded plate 71 (Fig. 11) which engages the undersides of four contiguous framing members, which are supported by a spiderconnector 56 from a hanger 64. For Figures see next column
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7380670A | 1970-09-21 | 1970-09-21 | |
US23082472A | 1972-03-01 | 1972-03-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1374929A true GB1374929A (en) | 1974-11-20 |
Family
ID=26754899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB777373A Expired GB1374929A (en) | 1970-09-21 | 1973-02-16 | Grid module in or for a suspended ceiling system |
Country Status (3)
Country | Link |
---|---|
US (2) | US3685235A (en) |
CA (1) | CA972526A (en) |
GB (1) | GB1374929A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2419887A1 (en) * | 1978-03-16 | 1979-10-12 | Fruehauf Corp | SUSPENSION HOOK FOR MEAT RAILS |
DE4219601A1 (en) * | 1992-06-16 | 1993-12-23 | Dietmar Heckelsmueller | Connecting system for walling parts - involves elongated connectors on both sides of which plate-shaped components are releasably arranged |
GB2322145A (en) * | 1997-02-18 | 1998-08-19 | Sgb Services Plc | Connecting elements, e.g. partitions, to walls |
Families Citing this family (94)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3685235A (en) * | 1970-09-21 | 1972-08-22 | Bajer Ind Inc | Suspended ceiling system including a grid network |
US3835614A (en) * | 1971-09-16 | 1974-09-17 | Donn Prod Inc | Suspension system |
US4043689A (en) * | 1972-01-27 | 1977-08-23 | Trend Ceilings Systems Co. | Modular ceiling system |
US3898782A (en) * | 1974-01-04 | 1975-08-12 | Lightolier Inc | Integrated ceiling system |
DE2425633C3 (en) * | 1974-05-07 | 1978-07-20 | Kalinna Jun., Erwin, 8882 Lauingen | Suspended ceiling for demonstration rooms |
NL7505763A (en) * | 1975-05-15 | 1976-11-17 | Treffers Willem M | CONSTRUCTION AND CONNECTION PROFILE FOR A CONSTRUCTION WORK. |
US4034531A (en) * | 1976-04-02 | 1977-07-12 | United States Gypsum Company | Ceiling system |
CA1048221A (en) * | 1977-02-25 | 1979-02-13 | Gerard E. Mulvey | Coffered ceiling system |
NL8002018A (en) * | 1980-04-03 | 1981-11-02 | Nemaco Trading Ltd | CEILING. |
FR2485591A1 (en) * | 1980-06-27 | 1981-12-31 | Someta | Suspended ventilated false ceiling - comprises panels supported between edges of hollow cross-members into which room partitions locate |
DE3038019C2 (en) * | 1980-10-08 | 1984-03-15 | Gema Bauelemente AG, 9015 St. Gallen | Grid ceiling |
US4448006A (en) * | 1981-05-28 | 1984-05-15 | Donn Incorporated | Grid ceiling structure and method of converting |
JPS6153958A (en) * | 1984-08-20 | 1986-03-18 | 株式会社 サアミ | Laying of tile like fiber floor material |
GB2167779A (en) * | 1984-11-26 | 1986-06-04 | Special Acoustic Services Limi | A suspended ceiling structure |
DE3447901C2 (en) * | 1984-12-28 | 1994-07-07 | Flaekt Ab | Modular frame arrangement that can be suspended from the ceiling of a room to hold filters with a fluid seal for clean room ceilings |
DE3500258A1 (en) * | 1985-01-05 | 1986-07-17 | Klima und Kälte GmbH Beratung und Vertrieb für Klima- und Kältetechnik, 6300 Gießen | Grid ceiling, in particular clean-room grid ceiling |
DE8500198U1 (en) * | 1985-01-05 | 1985-10-31 | Klima Und Kaelte Gmbh Beratung Und Vertrieb Fuer Klima- Und Kaeltetechnik, 6300 | Lattice work ceiling, in particular clean room lattice work ceiling |
SE456260B (en) * | 1985-01-29 | 1988-09-19 | Flaekt Ab | ROOF ROOFING RECTANGULAR FILTER ELEMENT |
US4678487A (en) * | 1985-05-14 | 1987-07-07 | Flanders Filters, Inc. | Laminar flow clean room having improved filter bank |
US4769958A (en) * | 1985-12-03 | 1988-09-13 | Limp Edgar W | Clean-room suspended ceiling |
EP0273996B1 (en) * | 1987-01-08 | 1991-07-24 | DOLMEN ENGINEERING & SYSTEMS LTD | A method and system for preparing an exhibition space |
CH677390A5 (en) * | 1987-01-30 | 1991-05-15 | Luwa Ag | |
CA1262055A (en) * | 1987-03-27 | 1989-10-03 | William Teron | Roof structure for tunnel |
DE8711244U1 (en) * | 1987-08-18 | 1987-10-01 | Hartleif Metalldecken Gmbh, 6832 Hockenheim, De | |
FR2625524B1 (en) * | 1988-01-06 | 1992-11-20 | Benoit Antoine | MULTIPURPOSE FALSE CEILING SYSTEM |
FR2626033A1 (en) * | 1988-01-15 | 1989-07-21 | Willerval Jean | Device for technical equipment hung from the ceiling |
DE3802309A1 (en) * | 1988-01-27 | 1989-08-10 | Albrecht Ritter | CEILING WITH A SUSPENDED CARRIAGE |
AU4320389A (en) * | 1988-09-09 | 1990-04-02 | Graham Bennett | Improvements in or relating to ceiling suspension arrangements |
DE3923621A1 (en) * | 1989-07-17 | 1991-01-31 | Juergen Schmitt | PROFILE FOR SUPPORTING CEILING PANELS |
GB2245010B (en) * | 1990-06-13 | 1995-01-04 | Dampa | Suspended ceiling support grid |
US5116235A (en) * | 1990-09-19 | 1992-05-26 | Herman Miller, Inc. | Power panel structure |
US5129835A (en) * | 1990-09-19 | 1992-07-14 | Herman Miller, Inc. | Power panel structure |
DE4030117C2 (en) * | 1990-09-23 | 1996-05-30 | Nmc Sa | Suspended coffered ceiling |
DE4036792C1 (en) * | 1990-11-19 | 1991-12-19 | Dmt Marinetechnik Gmbh, 2000 Hamburg, De | |
US5287668A (en) * | 1992-07-15 | 1994-02-22 | Capaul Corporation | Apparatus and method for refurbishing a ceiling grid to permit installation of ceiling panels |
US5279632A (en) * | 1992-12-17 | 1994-01-18 | International Business Machines Corporation | Planar clean room ceiling structure |
DE4315499C2 (en) * | 1993-05-10 | 1997-02-06 | Kluth Marlene | Profile strip for fastening tensioning tracks and for hanging objects |
EP0627532A1 (en) * | 1993-05-28 | 1994-12-07 | CLESTRA CLEANROOM, Société Anonyme | New suspended ceiling system for a clean room |
NL194857C (en) * | 1993-08-19 | 2003-05-06 | Jsi Art Fix Systems Bv | Suspension device for suspending and illuminating prints and the like. |
ZA959036B (en) * | 1995-08-03 | 1996-07-02 | Prestige Prod Inc | Track and fixture display bracket |
SE507517C2 (en) * | 1996-10-17 | 1998-06-15 | Flaekt Ab | Ceiling beam construction for clean rooms |
US5885154A (en) * | 1997-06-17 | 1999-03-23 | Napadow; Michael F. | Air supply means for a controlled environment room |
AT404926B (en) * | 1997-07-07 | 1999-03-25 | Fischer Adv Components Gmbh | DEVICE FOR DETACHABLE FIXING OF COVER PLATES OD. DGL. |
US6092777A (en) * | 1997-10-30 | 2000-07-25 | Eagle Inventors, Llc | Adjustable ceiling suspension system |
US6488097B1 (en) * | 1999-01-08 | 2002-12-03 | Pnm, Inc. | Fire protection sprinkler head support |
AU2495800A (en) * | 1999-01-08 | 2000-07-24 | Pnm, Inc. | Support system for fire protection sprinklers |
US6438901B1 (en) * | 2001-01-05 | 2002-08-27 | United Microelectronics Corp. | Shielding apparatus for protecting a machine |
CA2349970A1 (en) * | 2001-05-31 | 2002-11-30 | Martin Gagnon | Ventilation method and device |
US8850770B2 (en) * | 2001-06-21 | 2014-10-07 | Roger C. Roen | Structurally integrated accessible floor system |
US7546715B2 (en) * | 2001-06-21 | 2009-06-16 | Roen Roger C | Structurally integrated accessible floor system |
US6536710B1 (en) | 2002-02-06 | 2003-03-25 | The Boeing Company | Overhead lattice support structure |
US6907938B2 (en) * | 2002-08-07 | 2005-06-21 | Pbj, Llc | Decorative support panel |
US20050217194A1 (en) * | 2004-03-30 | 2005-10-06 | Eric Krantz-Lilienthal | Trim system for a suspended ceiling |
AU2005260240B2 (en) * | 2004-07-06 | 2010-09-09 | Mark Neville Biddle | A spacing device |
US20080155915A1 (en) * | 2004-08-05 | 2008-07-03 | Russel Howe | Power and Communication Distribution Using a Structural Channel Stystem |
US8051610B2 (en) * | 2004-09-22 | 2011-11-08 | Hill-Rom Services, Inc. | Patient flatwall system |
US20110072744A1 (en) | 2004-09-29 | 2011-03-31 | Ig Creative Solutions, Inc. | Housing construction system |
US7810294B2 (en) * | 2004-09-29 | 2010-10-12 | Ig Creative Solutions, Inc. | Housing construction system |
DE102005045453A1 (en) * | 2005-09-22 | 2007-04-05 | H. Lüdi + Co. AG Gas- und Energiesysteme | Mediendecke, in particular for laboratories, as well as methods for assembling such |
DE202006015764U1 (en) * | 2006-10-14 | 2008-02-21 | Obo Bettermann Gmbh & Co. Kg | Device for connecting workstations to an energy, data and / or communication network |
US7937903B2 (en) * | 2007-03-07 | 2011-05-10 | Portafab | Panelized ceiling system |
CA2588300C (en) * | 2007-04-30 | 2013-12-03 | Patrick Labonte-Dufresne | Medium density fiberboard (mdf) suspended ceiling |
US7971597B2 (en) * | 2008-03-17 | 2011-07-05 | Johnson Outdoors Inc. | Wire tray and tent frame incorporating same |
US9206603B2 (en) * | 2008-04-15 | 2015-12-08 | Nortek Air Solutions, Llc | Grid system for supporting a suspended ceiling and ceiling mounted equipment |
IT1391041B1 (en) † | 2008-07-11 | 2011-10-27 | Gemino Srl | BEAM WITH LIGHTING DEVICE, OF AN INTEGRATED SYSTEM OF INTERIOR PARTITION WITH CEILINGS AND DIVIDING WALLS. |
PL2196590T5 (en) * | 2008-12-10 | 2014-10-31 | Rockwool Int | Suspended ceiling structure connected to a construction element and method of mounting a construction element to a suspended ceiling structure |
US9057542B2 (en) * | 2009-04-27 | 2015-06-16 | Unirac, Inc. | Snap-on structural connector |
US9273464B2 (en) * | 2009-09-01 | 2016-03-01 | Roger C. Roen | Structurally integrated accessible floor system |
US8051616B2 (en) | 2009-06-02 | 2011-11-08 | Won-Door Corporation | Movable partitions, header assemblies for movable partitions, and related methods |
AT510670B1 (en) * | 2010-10-19 | 2012-09-15 | Weingaertner Werner | INSTALLATION DEVICE FOR INSTALLATION ELEMENTS |
US9476248B2 (en) | 2011-11-28 | 2016-10-25 | Won-Door Corporation | Movable partition systems including header assemblies and related methods |
US9663961B2 (en) * | 2012-12-07 | 2017-05-30 | Illinois Tool Works Inc. | Curtain wall panel installation system |
WO2015184157A1 (en) | 2014-05-28 | 2015-12-03 | The Reliable Automatic Sprinkler Co. | Bracket for installation of fire sprinklers |
MX364612B (en) | 2014-06-27 | 2019-05-02 | Anvil Int Llc | Adjustable bracket and hub for flexible hose support. |
CA2857004C (en) * | 2014-07-16 | 2018-10-02 | Certainteed Canada, Inc. | Ceiling grid system for receiving led strip lights |
US9534382B2 (en) | 2014-07-16 | 2017-01-03 | Certainteed Canada, Inc. | Lighting assembly |
CA2861363C (en) | 2014-08-29 | 2018-01-16 | Martin Daniel Gerkes | Strip light arrangement for t bar ceiling grid systems |
US9938724B2 (en) * | 2015-03-03 | 2018-04-10 | Walters Healthcare Resources, Inc. | Adaptable operating room ceiling systems |
US10113317B1 (en) * | 2015-04-16 | 2018-10-30 | Gordon Sales, Inc. | Apparatus and method for hanging architectural panels with concealed attachment points |
US10844609B2 (en) * | 2016-04-22 | 2020-11-24 | Jimmy Keith Yeary, JR. | Building rail system |
WO2018053136A1 (en) * | 2016-09-15 | 2018-03-22 | Armstrong World Industries, Inc. | Ceiling system with air movement |
US9771718B1 (en) | 2016-10-07 | 2017-09-26 | Tate Access Floors Leasing, Inc. | Strut with non-structural infill |
US9879424B1 (en) * | 2017-06-07 | 2018-01-30 | Usg Interiors, Llc | Torsion spring panel bars and construction method |
CN107792302A (en) * | 2017-11-16 | 2018-03-13 | 中船黄埔文冲船舶有限公司 | Ceiling connector |
WO2019183250A1 (en) | 2018-03-21 | 2019-09-26 | Armstrong World Industries, Inc. | Ceiling system having a plurality of different panels |
CA3106408A1 (en) * | 2018-07-17 | 2020-01-23 | Certainteed Ceilings Corporation | Acoustic panels and methods for preparing them |
US11408170B2 (en) * | 2019-02-06 | 2022-08-09 | Flexible OR Solutions LLC | Universal pre-fabricated operating room ceiling system |
US10975568B1 (en) * | 2020-11-19 | 2021-04-13 | FACT Design, LLC | Ceiling tile with integrated baffle |
US11447951B2 (en) | 2020-11-19 | 2022-09-20 | FACT Design, LLC | Ceiling tile with integrated baffle |
US11174635B1 (en) | 2021-04-29 | 2021-11-16 | FACT Design, LLC | Baffle ceiling tile with retaining structure |
CN113622581B (en) * | 2021-08-09 | 2022-12-09 | 深装总建设集团股份有限公司 | Special-shaped ceiling formed by combining triangular grating splicing units and installation method |
US11532295B1 (en) | 2022-03-10 | 2022-12-20 | FACT Design, LLC | Ceiling tile with baffle and stabilizing member |
WO2023242863A1 (en) * | 2022-06-16 | 2023-12-21 | Pwds Extrusions Private Limited | A ceiling apparatus and method thereof |
CN115711420A (en) * | 2022-11-16 | 2023-02-24 | 浙江林德纳新型建材有限公司 | Indoor heating device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2910738A (en) * | 1957-01-23 | 1959-11-03 | Kenneth M Mccorkell | Ceiling structure |
US3181274A (en) * | 1961-08-14 | 1965-05-04 | George C Izenour | Versatile display apparatus |
US3202077A (en) * | 1963-04-17 | 1965-08-24 | Owens Corning Fiberglass Corp | Expansion channel |
US3327438A (en) * | 1964-02-24 | 1967-06-27 | Westinghouse Electric Corp | Building construction |
US3589083A (en) * | 1969-03-20 | 1971-06-29 | Lightcraft Of California Inc | Wall system |
US3685235A (en) * | 1970-09-21 | 1972-08-22 | Bajer Ind Inc | Suspended ceiling system including a grid network |
-
1970
- 1970-09-21 US US73806A patent/US3685235A/en not_active Expired - Lifetime
-
1972
- 1972-03-01 US US00230824A patent/US3742674A/en not_active Expired - Lifetime
-
1973
- 1973-02-16 GB GB777373A patent/GB1374929A/en not_active Expired
- 1973-02-23 CA CA164,472A patent/CA972526A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2419887A1 (en) * | 1978-03-16 | 1979-10-12 | Fruehauf Corp | SUSPENSION HOOK FOR MEAT RAILS |
DE4219601A1 (en) * | 1992-06-16 | 1993-12-23 | Dietmar Heckelsmueller | Connecting system for walling parts - involves elongated connectors on both sides of which plate-shaped components are releasably arranged |
DE4219601C2 (en) * | 1992-06-16 | 1999-07-29 | Dietmar Heckelsmueller | Connection system for wall parts |
GB2322145A (en) * | 1997-02-18 | 1998-08-19 | Sgb Services Plc | Connecting elements, e.g. partitions, to walls |
GB2322145B (en) * | 1997-02-18 | 2000-10-25 | Sgb Services Plc | Improvements in or relating to a structural arrangement |
Also Published As
Publication number | Publication date |
---|---|
US3742674A (en) | 1973-07-03 |
CA972526A (en) | 1975-08-12 |
US3685235A (en) | 1972-08-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |