Granted Patent
Utility
US 5,131,019 · App. 07/497,782
System for interfacing an alarm reporting device with a cellular radio transceiver
Inventors:
Eliezer A. Sheffer, Ronald J. Chebra, Richard W. Haff
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Mar 21, 1990
Inventors
Eliezer A. Sheffer
Ronald J. Chebra
Richard W. Haff
Assignee (at issue)
VERSUS TECHNOLOGY, INC.
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.