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

Icon_funbox Did You Know...

...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...

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 238/72 - Rectangular


Subclass of Class 238 - Railways: surface track
Definition: Ties formed with rectangular tubular apertures therethrough.
No. of patents: 1
Last issue date: 09/12/1978


NumberTitleIssue Date
4113177Composite railroad cross tie with rail support blocks
The present invention relates to an apparatus for retaining the rails of a railroad on the cross ties. Also disclosed herein is a novel railroad cross tie which has superior life expectancy as well as damping capability and is highly resistant to the elem...
09/12/1978
 
Sign InRegister
Username  
Password   
forgot password?