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:
Jan. 04, 1977
Filed:
Sep. 04, 1975
Applicant:
Inventor:
Duane Ridgely Bolgiano, Bala Cynwyd, PA (US);
Assignee:
International Mobile Machines Corporation, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G / ;
U.S. Cl.
CPC ...
330 29 ; 179 / ; 330127 ; 330129 ;
Abstract
A system for selectively deactivating a telephone bell on a telephone instrument whereby when a telephone number is called, an auxiliary system automatically cuts in to prevent ringing of the bell until a predetermined code is dialed or touch-toned, at which time the telephone bell is actuated.
Bolgiano, Duane. (1977). Code-controlled ringer attachment for telephones including (U.S. Patent No. 4001708). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4001708
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile