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. 06, 1989
Filed:
Apr. 08, 1986
Applicant:
Inventors:
Thomas W Crosley, Saratoga, CA (US);
Wayne Davison, Portland, OR (US);
James R Goldberg, Novato, CA (US);
Leonard L Hofheins, Concord, CA (US);
Ronald D Lichty, San Francisco, CA (US);
Charles A Vollum, Sherwood, OR (US);
Stephen H Vollum, Sherwood, OR (US);
Victor H Yee, Oakland, CA (US);
Assignee:
Schlage Lock Company, San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
380 23 ; 380 30 ; 380 52 ;
Abstract
The present invention relates to electronic locks and electronic locking systems, to electronic locking systems which use remotely encoded keycards and, in particular, to an electronic locking system which utilizes public key cryptography.