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 3349949

The Invention of the Modern Soda Can Pull-Tab

A 1965 design for a ring-shaped metal tab that makes it easy to pull open a tear strip on a beverage can.

Statusexpired

Granted1967

Expires1985

Claims2

Forward citations28

Prior art3

AssigneeIndividual

InventorsOmar L Brown, Don B Peters

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