Granted Patent
Utility
US 4,458,521 · App. 06/364,762
Leak detection system
Inventor:
Kibbie P. Pillette
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: Apr 2, 1982
Inventor
Kibbie P. Pillette
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.