Granted Patent
Utility
US 4,467,936 · App. 06/283,538
Closure for a pressurized chamber
Inventor:
Raju T. Makhijani
Patented Case
View Patent ↗
Granted: Aug 28, 1984
Filed: Jul 15, 1981
Inventor
Raju T. Makhijani
Assignee (at issue)
American Sterilizer 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.