Granted Patent
Utility
US 3,994,684 · App. 05/587,230
Double shell sterilizer vessel method and apparatus
Inventor:
Frank Anthony Tomasulo
Patented Case
View Patent ↗
Granted: Nov 30, 1976
Filed: Jun 16, 1975
Inventor
Frank Anthony Tomasulo
Assignee (at issue)
Sybron 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.