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:
Jul. 06, 1993
Filed:
Sep. 24, 1991
James F Cole, Palo Alto, CA (US);
Jerald J Keeran, San Jose, CA (US);
Grid Systems Corporation, , CA (US);
Abstract
A method and apparatus for password protecting a personal, laptop or single user computer. The user's password entry is compared to the value of a secondary password retained by the computer as well as the value of the user's stored primary password. The user may thus access the computer when his primary password is corrupted or forgotten by obtaining an alternate password from the computer manufacturer which matches the secondary password generated or stored by the computer. The operation of the method and the organization of the apparatus make the secondary and alternate passwords valid for a limited time, thereby preserving the overall integrity of the password protection system. The primary, secondary and alternate passwords may be encrypted for added security.