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

Icon_funbox Quotables

"Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza."

Dave Barry

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 116/314 - Helical spring type


Subclass of Class 116 - Signals and indicators
Definition: Devices wherein the resilient means has the shape of a spiral
No. of patents: 3
Last issue date: 08/28/2007


NumberTitleIssue Date
7262355Snare strainer
A snare strainer adapted to a snare drum comprises first and second strainers, which are attached to opposite positions on the exterior circumferential surface of a drum cylinder and by which a snappy member including snares is controlled to move in close contact wi...
08/28/2007
4674433Correct answer displaying device for arithmetic practicing unit
A correct answer displaying device for an arithmetic practicing device or the like. Plural chambers are arranged in matrix form with partition boards, and a colored transparent plate is placed over the chambers on which numerical problems to be solved are...
06/23/1987
4037719Cigarette counting case
A case for containing a pack of cigarettes, the case including a counting mechanism which counts the number of times that the case is opened up so to remove a cigarette from the pack, thus enabling a smoker, who wished to cut down on his smoking habit, to...
07/26/1977
 
Sign InRegister
Username  
Password   
forgot password?