Granted Patent
Utility
US 4,321,232 · App. 06/134,015
Package and sterilizing process for same
Inventor:
Roger M. Bithell
Patented Case
View Patent ↗
Granted: Mar 23, 1982
Filed: Mar 25, 1980
Inventor
Roger M. Bithell
Assignee (at issue)
TEGAL CORPORATION
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.