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Patent
   D254769
Priority
Oct 03 1977
Filed
Apr 10 1978
Issued
Apr 22 1980
Expiry
Apr 22 1994
Inventors
Boldt, Mel…
Assg.orig
National P…
Assg.curr
National P…
Entity
unknown
Referenced by
5
References
6
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 showing our new design;

FIG. 2 is a side elevational view thereof, the side opposite being identical thereto;

FIG. 3 is an end elevational view thereof, the end opposite being identical thereto; and

FIG. 4 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
D280592, Feb 14 1983 Hy Cite Corporation Audible signaling device for a cooking utensil
D825986, Feb 17 2017 Meyer Intellectual Properties Limited Cookware lid vent
D966780, Mar 09 2018 NATIONAL PRESTO INDUSTRIES, INC Pressure cooker
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
63816,
136263,
162743,
185912,
230690,
240612,
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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