U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

Pong, the Atari creation that launched the computer game craze, came with these instructions: "Avoid missing ball for high score."

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 81/70 - Duplex


Subclass of Class 81 - Tools
Definition: The handle-jaw has two faces, either of which may engage
No. of patents: 1
Last issue date: 01/10/1989


NumberTitleIssue Date
4796493Apparatus and method for unscrewing a bicycle chain sprocket
A tool for unscrewing a bicycle chain sprocket from a bicycle sprocket cluster which can be used for roadside emergency repairs is disclosed. The tool has a hook which engages a portion of the bicycle frame, and a length of engagement chain which engages ...
01/10/1989
 
Sign InRegister
Username  
Password   
forgot password?