Granted Patent
Utility
US 5,065,136 · App. 07/615,128
Door security system
Inventors:
George Frolov, Gary E. Lavelle, James J. Scott
Patented Case
View Patent ↗
Granted: Nov 12, 1991
Filed: Nov 19, 1990
Inventors
George Frolov
Gary E. Lavelle
James J. Scott
Assignee (at issue)
Harrow Products LLC
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.