Granted Patent
Utility
US 4,492,833 · App. 06/434,523
Door jamb switch
Inventor:
Michael W. Malesko
Patented Case
View Patent ↗
Granted: Jan 8, 1985
Filed: Oct 15, 1982
Inventor
Michael W. Malesko
Assignee (at issue)
Gulf Eastern Manufacturing 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.