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:
Sep. 29, 1998
Filed:
May. 31, 1996
Applicant:
Inventors:
Gary E Lavelle, Avon, CT (US);
George Frolov, Farmington, CT (US);
Assignee:
Harrow Products, Inc., Grand Rapids, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
34582531 ; 34082534 ; 34082532 ; 235382 ; 2353825 ; 70276 ; 70277 ; 70278 ;
Abstract
Programmers for an entry control system employ data carriers housing ROM chips. The ROM chips are affixed with unique elemental codes. A keypad addresses the chips in one-to-one correspondence with the keys to transmit the unique elemental codes to the programmable processor of the entry control system.