The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 1990
Filed:
Feb. 12, 1987
Applicant:
Inventors:
Jean-Luc Mazzone, Apples, CH;
Marc Bidiville, Pully, CH;
Assignees:
Logitech, Inc., Fremont, CA (US);
Logitech SA, Apples, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340710 ; 7447 / ;
Abstract
A light ball electronic mouse using a ball with a specific gravity between one and four, X and Y shaft encoders of substantially reduced diameter, and a pressure roller of substantially reduced force for controlling the position of a cursor in a video display.