Patent
   D310585
Priority
Apr 29 1987
Filed
Apr 29 1987
Issued
Sep 11 1990
Expiry
Sep 11 2004
Assg.orig
Entity
unknown
9
5
n/a
The ornamental design for a protective cap for a respirator's replaceable filter, as shown and described.

FIG. 1 is a front elevational view of a protective cap for a respirator's replaceable filter showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a front perspective view thereof; and

FIG. 8 is a half-sectional view of FIG. 7, it being understood that a half of the protective cap has been shown broken away for clarity of illustration.

Newcomb, William E.

Patent Priority Assignee Title
D321267, Feb 13 1989 Underwater Diving Inc. Mouthpiece cover
D433751, Jul 20 1998 3M Innovative Properties Company Cap
D434847, Jul 20 1998 3M Innovative Propeties Company Cap
D449103, Aug 03 2000 3M Innovative Properties Company Finger recesses in a cover of a filter cartridge
D465568, Aug 03 2000 3M Innovative Properties Company Cover for a filter cartridge
D473299, Jun 21 2001 3M Innovative Properties Company Cartridge cap
D651707, Jun 18 2009 Nebulizer mouthpiece protector
D747470, Feb 01 2013 3M Innovative Properties Company; 3M INNOVIATVE PROPERTIES COMPANY Respirator cartridge connector
D935600, Mar 03 2021 Mask filter
Patent Priority Assignee Title
2751904,
3326214,
4850346, Oct 20 1986 DALLOZ INVESTMENT, INC Respirator
D274849, Aug 20 1981 FIGGIE INTERNATIONAL INC Gas filter container for a respirator
DE971654,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 28 1987NEWCOMB, WILLIAM E SIEBE NORTH, INC , A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST 0047060347 pdf
Apr 29 1987Siebe North, Inc.(assignment on the face of the patent)
Oct 05 1998Bankers Trust CompanySIEBE NORTH, INC RELEASE OF SECURITY INTEREST0096330591 pdf
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