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:
Jun. 15, 1993
Filed:
Aug. 20, 1990
Applicant:
Inventor:
Darrell S Staley, Santa Clara, CA (US);
Assignee:
Ampex Corporation, , CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
34082534 ; 400481 ; 400490 ; 4004912 ; 400495 ;
Abstract
Apparatus for adjusting the key activating force or 'touch' for a keyboard or for one or more function key groups on that keyboard to the needs of any individual operator.
Staley, Darrell. (1993). Apparatus for selectively varying keyboard switching force (U.S. Patent No. 5220318). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5220318
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile