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Patent
   D452911
Priority
Sep 07 2000
Filed
Mar 06 2001
Issued
Jan 08 2002
Expiry
Jan 08 2016
Inventors
Danielsson…
Assg.orig
Pharma Sys…
Assg.curr
Pharma Sys…
Entity
unknown
Referenced by
17
References
5
Maint.:
n/a
The ornamental design for a respiratory filter, as shown and described.

FIG. 1 is a rear, bottom, right side perspective view of a respiratory filter showing my new design; and,

FIG. 2 is a front, top, left side perspective view thereof.
INVENTORS:

Danielsson, Curt

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
9642403, Aug 16 2007 Kimberly-Clark Worldwide, Inc Strap fastening system for a disposable respirator providing improved donning
D628701, Nov 13 2007 Maquet Critical Care AB Medical device
D631551, Nov 13 2007 Maquet Critical Care AB Medical device
D634429, Nov 13 2007 Maquet Critical Care AB Absorber of a medical device
D744654, Oct 23 2013 Louis M. Gerson Co., Inc.; LOUIS M GERSON CO , INC Low profile filter
D746439, Dec 30 2013 Kimberly-Clark Worldwide, Inc Combination valve and buckle set for disposable respirators
D760902, Oct 03 2014 COLOPLAST A S Tracheostomy filter
D775344, Apr 07 2015 TECMEN ELECTRONICS CO , LTD Filter cartridge for welding respirator
D820455, Jun 09 2015 Lincoln Global, Inc. Filter cover of a powered air purifying respirator
D822212, Oct 20 2016 Connected mini blood glucose meter
D839432, Feb 01 2016 Asahi Kasei Kabushiki Kaisha Filter housing
D848077, Mar 07 2018 Lincoln Global, Inc Cover lens frame
D851841, Mar 23 2018 Lincoln Global, Inc Shield holder frame
D853044, Mar 07 2018 Lincoln Global, Inc Inner shell of a helmet
D857306, Mar 07 2018 Lincoln Global, Inc Top of helmet shell
D860546, Mar 07 2018 Lincoln Global, Inc Top shell for helmet
D887554, Jun 09 2015 Lincoln Global, Inc Belt bracket of a powered air purifying respirator
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
4976857, May 03 1989 Layton Manufacturing Corporation Filter element and fabrication methodology
5240479, May 17 1991 Donaldson Company, Inc.; DONALDSON COMPANY, INC A CORPORATION OF DELAWARE Pleated filter media having a continuous bead of adhesive between layers of filtering material
5320096, Feb 21 1992 Gibeck Respiration AB Filtering device and the use thereof
D253721, Jan 28 1977 Louis Gibeck AB Moisture and heat exchanger for respiratory apparatus
D301377, Aug 14 1985 Louis Gibeck AB Moisture/heat exchanger for respiratory apparatus or similar article
ASSIGNMENT RECORDS    Assignment records on the USPTO
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 06 2001Pharma Systems PS AB(assignment on the face of the patent)
May 10 2001DANIELSSON, CURTPharma Systems PS ABASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0118220584 pdf
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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