Granted Patent
Utility
US 5,581,602 · App. 08/372,889
Non-offensive termination of a call detection of an answering machine
Inventors:
Aleksander Szlam, Chester P. Quinn
Patented Case
View Patent ↗
Granted: Dec 3, 1996
Filed: Jan 13, 1995
Inventors
Aleksander Szlam
Chester P. Quinn
Assignee (at issue)
Inventio AG
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.