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. 09, 1999
Filed:
Apr. 03, 1992
Applicant:
Inventor:
Robert E Lucey, Sudbury, MA (US);
Assignee:
Unex Corporation, Chelmsford, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379387 ; 379309 ;
Abstract
An amplifier in a telephone call station which is capable of indicating to a telephone call distribution system whether a microphone headset is in electrical communication with the telephone call station. The amplifier simulates being physically disconnected from the telephone call distribution system when the microphone is disconnected from the amplifier thus informing the telephone call distribution system to redirect telephone calls originally destined for that telephone call station.