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

Icon_funbox Quotables

"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."

Thomas Edison ; 1889

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 238/48 - Spring


Subclass of Class 238 - Railways: surface track
Definition: Ties so formed that the top portion, carrying two rails,
No. of patents: 1
Last issue date: 05/27/1980


NumberTitleIssue Date
4204660Process of railroad tie concrete casting
Apparatus for molding rail ties of the type which include one or more fastening devices embedded in the concrete of the type having a shoe plate which rests on the tie and a projecting tab part, the mold having plates, which are preferably removable inser... 		05/27/1980
 
Sign InRegister
Username  
Password   
forgot password?