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:
Oct. 09, 1987
Applicant:
Inventor:
Yoshimi Shigenaga, Tokyo, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379172 ; 379173 ; 379216 ;
Abstract
A telephone system, wherein an IC card device storing a personal ID number is inserted into the telephone nearest the owner of the IC card device, thus registering the personal ID number in association with the nearest telephone. Once the personal ID number has been registered in this manner, this telephone is automatically connected to any calling telephone on which the personal ID number is dialed.
Shigenaga, Yoshimi. (1989). Private telephone system using a personal code number to access the (U.S. Patent No. 4852156). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4852156
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