Granted Patent
Utility
US 4,175,236 · App. 05/864,080
Method and apparatus of cavity identification of mold of origin
Inventor:
Jonn W. Juvinall
Patented Case
View Patent ↗
Granted: Nov 20, 1979
Filed: Dec 23, 1977
Inventor
Jonn W. Juvinall
Assignee (at issue)
Owens-Illinois Inc.
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.