Granted Patent
Utility
US 4,084,490 · App. 05/768,245
Container bottom cutting apparatus and method
Inventor:
Thomas E. Doherty
Patented Case
View Patent ↗
Granted: Apr 18, 1978
Filed: Feb 14, 1977
Inventor
Thomas E. Doherty
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.