Granted Patent
Utility
US 4,457,892 · App. 06/009,817
Biocidal gas sterilization and gas leakage determination
Inventor:
Jack H. Young
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Feb 6, 1979
Inventor
Jack H. Young
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.