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Patent
   D294410
Priority
Apr 09 1985
Filed
Apr 09 1985
Issued
Feb 23 1988
Expiry
Feb 23 2002
Inventors
Montesi, E…
Assg.orig
SIEBE NORT…
Assg.curr
Siebe Nort…
Entity
unknown
Referenced by
15
References
8
Maint.:
n/a
The ornamental design for a valve assembly for a respirator, as shown and described.

FIG. 1 is an exploded perspective view of a valve assembly of respirator showing my new design;

FIG. 2 is a rear perspective view of the respirator shown in assembled condition;

FIG. 3 is a front perspective view of FIG. 2.
INVENTORS:

Montesi, Edward N.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D310431, Jan 30 1987 LIFELINE LIMITED, BRAY ROAD, VALE, GUERNSEY CHANNEL ISLANDS, A GUERNSEY COMPANY Gas delivery mask
D320677, Nov 16 1989 Gas mask
D347299, Oct 13 1992 Minnesota Mining and Manufacturing Company Valve cover
D740932, Sep 24 2013 3M Innovative Properties Company Respirator with raised face seal flexing region
D742504, Feb 27 2015 3M Innovative Properties Company Respirator mask
D754844, May 22 2014 3M Innovative Properties Company Respirator mask
D757249, Jan 13 2015 Respirator mask
D776258, Sep 24 2013 3M Innovative Properties Company Respirator with face seal multiple flexing region
D787659, Sep 24 2013 3M Innovative Properties Company Respirator with face seal flexing region
D787660, May 22 2014 3M Innovative Properties Company Respirator mask having a face seal flexing region
D811582, Jul 06 2016 SleepNet Corporation Face mask
D812737, Jul 06 2016 SleepNet Corporation Face mask
D936208, Apr 01 2020 Respiratory mask
D958967, Feb 08 2020 Respiratory mask
D968712, Nov 09 2020 CLEANSPACE IP PTY LTD Filter for breathing mask
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2067822,
3014479,
3072119,
3307543,
4454881, Aug 21 1981 Moldex-Metric, Inc Multi-layer face mask with molded edge bead
4501272, Oct 30 1981 SHIGEMATSU WORKS CO , LTD Mask
4549543, Dec 01 1982 Air filtering face mask
537678,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 28 1985MONTESI, EDWARD N SIEBE NORTH, INC , A CORP OF DEASSIGNMENT OF ASSIGNORS INTEREST 0043940411 pdf
Apr 09 1985Siebe North, Inc.(assignment on the face of the patent)
Jul 30 1990SIEBE NORTH, INC A CORP OF DELAWAREBankers Trust CompanySECURITY INTEREST SEE DOCUMENT FOR DETAILS 0057580193 pdf
Oct 05 1998Bankers Trust CompanySIEBE NORTH, INC RELEASE OF SECURITY INTEREST0096330591 pdf
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