Granted Patent
Utility
US 4,249,167 · App. 06/045,808
Apparatus and method for theft detection system having different frequencies
Inventors:
Edwin C. Purinton, Robert L. Auger, Carl S. Holzinger
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Jun 5, 1979
Inventors
Edwin C. Purinton
Robert L. Auger
Carl S. Holzinger
Assignee (at issue)
Magnavox Government and Industrial Electronics Company
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.