Granted Patent
Utility
US 5,194,012 · App. 07/737,710
Spark-proof hostile environment connector
Inventor:
James L. Cairns
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Jul 30, 1991
Inventor
James L. Cairns
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.