Granted Patent
Utility
US 4,616,761 · App. 06/673,063
Vacuum indicating thermoplastic closure
Inventor:
James F. Nolan
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Nov 19, 1984
Inventor
James F. Nolan
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.