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Patent
   D253746
Priority
Mar 07 1977
Filed
Apr 10 1978
Issued
Dec 25 1979
Expiry
Dec 25 1993
Inventors
Boldt, Mel…
Assg.orig
National P…
Assg.curr
National P…
Entity
unknown
Referenced by
4
References
5
Maint.:
n/a
The ornamental design for a pressure cooker regulator, substantially as shown and described.

FIG. 1 is a top plan view of a pressure cooker regulator embodying our new design;

FIG. 2 is a side elevational view thereof and

FIG. 3 is a bottom plan view thereof.
INVENTORS:

Boldt, Melvin H., Stevens, James P., Morrison, Thurber H.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
8276507, Nov 11 2008 NATIONAL PRESTO INDUSTRIES, INC Two-piece handle design for pressure cooker
9138106, Nov 11 2008 National Presto Industries, Inc. Two-piece handle design for pressure cooker
D832045, Oct 09 2015 FIRE BUTLER, LLC Solid fuel cooking device with lid
D966780, Mar 09 2018 NATIONAL PRESTO INDUSTRIES, INC Pressure cooker
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2200903,
143693,
148833,
162743,
199923,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 10 1978National Presto Industries, Inc.(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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