Granted Patent
Utility
US 5,261,186 · App. 07/942,158
Fire door closure reset system
Inventor:
Felix H. Saino
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Sep 8, 1992
Inventor
Felix H. Saino
Assignee (at issue)
F. L. Saino Manufacturing Co.
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.