Granted Patent
Utility
US 4,187,276 · App. 05/905,686
Method of making a plastic package
Inventor:
Stephen W. Amberg
Patented Case
View Patent ↗
Granted: Feb 5, 1980
Filed: May 15, 1978
Inventor
Stephen W. Amberg
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.