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:
Nov. 25, 1986
Filed:
Dec. 30, 1983
Applicant:
Inventors:
Paul E Crouch, Freehold, NJ (US);
Joseph J Nahas, Wyomissing Hills, PA (US);
Howard Ng, Old Bridge, NJ (US);
Assignees:
AT&T Technologies Inc., Murray Hill, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379145 ; 194317 ;
Abstract
This invention pertains to a microcomputer controlled coin telephone set which prevents coin call fraud and performs all of the coin discrimination functions. The microcomputer also checks the operational readiness of the telephone set to prevent the acceptance of coins into a hopper for late collection by a coin box unless or until the set is fully functional.