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:
May. 16, 1995
Filed:
Dec. 21, 1992
Applicant:
Inventors:
William D Treharne, Dearborn Heights, MI (US);
Ronald G Moore, Troy, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05B / ;
U.S. Cl.
CPC ...
34082531 ; 34082534 ; 340426 ; 70278 ;
Abstract
A method for programming a spare key containing an electronic coded security code into the memory of a security system whereby a known key is inserted into the lock cylinder and the security device is triggered to read its encoded security code. If within a period of time an unknown key is inserted into the lock cylinder, the encoded security code of the unknown key is then inserted into the system memory. The new key security code becomes an additional acceptable security code to open the lock in response to receiving the first (authorized) security code.