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1927-12-20 |
1930-05-20 |
Majestic Mills Paper Co Inc |
Filing receptacle
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1951-03-20 |
1953-04-14 |
Us Rubber Co |
Stretchable face mask
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1961-03-28 |
1965-11-30 |
Johnson & Johnson |
Face mask
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1968-09-14 |
1971-09-29 |
Ernst Hauer |
Improvements in envelopes for mechanically enveloping cards or letter sheets or like articles
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1980-07-03 |
1983-12-13 |
Racal Safety Limited |
Respirators
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1981-05-01 |
1984-05-01 |
Barr Arthur C |
Two way mailing envelope
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1981-08-21 |
1984-06-19 |
Moldex/Metric Products, Inc. |
Multi-layer face mask with molded edge bead
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1983-05-20 |
1986-06-17 |
21St Century Envelope Co., Inc. |
Two-way envelope
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1985-09-23 |
1986-08-19 |
Tecnol, Inc. |
Noncollapsible surgical face mask
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USD304869S
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1987-12-01 |
1989-11-28 |
Connie Mattox |
Protective facial mask
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1988-04-19 |
1989-10-26 |
Danzaburou Takada |
加湿マスク
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1988-06-09 |
1991-05-07 |
Muckerheide Myron C |
Surgical mask barrier apparatus
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1994-07-20 |
1996-09-10 |
Tecnol Medical Products, Inc. |
Face mask with enhanced seal and method
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1995-12-01 |
1997-12-30 |
Bledstein; Adrien Janis |
Multipurpose face mask that maintains an airspace between the mask and the wearer's face
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1996-05-20 |
1997-12-30 |
Survivair, Inc. |
Disposable face mask
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1996-09-06 |
2000-05-09 |
3M Innovative Properties Company |
Respiratory protection mask
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1996-11-25 |
2010-07-20 |
3M Innovative Properties Company |
Personal respiratory protection device
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1998-04-29 |
2001-01-16 |
Kimberly-Clark Worldwide, Inc. |
Disposable aerosol mask with disparate portions
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1999-02-17 |
2001-06-19 |
3M Innovative Properties Company |
Respiratory mask
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JP3295413B2
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2000-01-21 |
2002-06-24 |
サンエム・パッケージ株式会社 |
マスク
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USD449377S1
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2000-05-09 |
2001-10-16 |
3M Innovative Properties Company |
Tabs on a personal respiratory protection device
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2000-11-17 |
2003-11-11 |
Kimberly-Clark Worldwide, Inc. |
Extensible and retractable face mask
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2001-05-23 |
2002-07-16 |
Street Cars, Inc. |
Fingerprint shoe sole
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2002-06-05 |
2005-03-02 |
Louis M. Gerson Co., Inc. |
Face mask and method of manufacturing the same
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2004-12-22 |
2006-06-22 |
Kimberly-Clark Worldwide, Inc |
Face mask with horizontal and vertical folds
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2007-05-03 |
2008-11-06 |
3M Innovative Properties Company |
Maintenance-free respirator that has concave portions on opposing sides of mask top section
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2007-05-03 |
2017-09-26 |
3M Innovative Properties Company |
Maintenance-free anti-fog respirator
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2007-05-03 |
2008-11-06 |
3M Innovative Properties Company |
Maintenance-free flat-fold respirator that includes a graspable tab
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2009-09-18 |
2014-02-04 |
3M Innovative Properties Company |
Flat-fold filtering face-piece respirator having structural weld pattern
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2009-10-23 |
2013-09-10 |
3M Innovative Properties Company |
Filtering face-piece respirator having parallel line weld pattern in mask body
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2010-06-25 |
2011-12-29 |
3M Innovative Properties Company |
Respirator that has inward nose region fold with high level conformation
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