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

Icon_funbox Famous Patents

3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.

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 218/55 - Grounding switch


Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter including a mechanical switching device by
No. of applications: 1
Last issue date: 01/12/2006


Application No.Application TitleIssue Date
20060006143Earthing switch
An earthing switch for a medium voltage switchgear comprising a plurality of fixed contacts, a plurality of movable contact surfaces which are suitable to contact said plurality of fixed contacts and a support structure suitable to support moving means which allow the m...
01/12/2006
 
Sign InRegister
Username  
Password   
forgot password?