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. 25, 1989
Filed:
Dec. 21, 1987
Applicant:
Inventor:
Toshihiko Yamashita, Osaka, JP;
Assignee:
Unisafe Limited, Kowloon, HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ; E05B / ;
U.S. Cl.
CPC ...
34082531 ; 70277 ; 2353825 ;
Abstract
An electronic locking device which is particularly useful for safes in a hotel room comprises an unlocking circuit actuated when a code on a magnetic card which acts as the 'key' is read by a card reader forming part of the device agrees with an unlocking code stored in the memory of the device. The unlocking code from the card is set in memory when the memory is enabled and the magnetic card is loaded into the card reader for a plurality of times within a relatively short pre-selected time interval.