Patent comparison

Compare Patents

Compare two patents side by side. Add ?a=us/7657849&b=us/8046721 to the URL to load specific patents.

US 2187888

How the 1940 Nachumsohn Cooking Apparatus Works

A 1940 patent for a cooking device designed to heat food efficiently using an enclosed chamber and specific heat distribution methods.

Statusexpired

Granted1940

Expires1956

Claims0

Forward citations31

Prior art0

AssigneeIndividual

InventorsNachumsohn Irving

Patent B

Add ?b=us/7657849 to compare

How to use

Bookmark a comparison URL to save it. Format: /compare?a=[country]/[number]&b=[country]/[number]. Example: /compare?a=us/7657849&b=us/8046721