Granted Patent
Utility
US 4,232,736 · App. 05/954,578
Leak detection system and control using non-rigid bladder
Inventor:
Kibbie P. Pillette
Patented Case
View Patent ↗
Granted: Nov 11, 1980
Filed: Oct 23, 1978
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.