USD253746SExpiredUtility

Pressure cooker regulator

74
Assignee: NAT PRESTO INDUSTRIES INCPriority: Apr 10, 1978Filed: Apr 10, 1978Granted: Dec 25, 1979
Est. expiryApr 10, 1998(expired)· nominal 20-yr term from priority
Inventors:Melvin H. BoldtThurber H. MorrisonJames P. Stevens
74
PatentIndex Score
11
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a pressure cooker regulator, substantially as shown and described.

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