Granted Patent
Utility
US 3,969,173 · App. 05/418,562
Method and apparatus for fabricating thermoplastic containers
Inventors:
Stephen W. Amberg, Ralph G. Amberg
Patented Case
View Patent ↗
Granted: Jul 13, 1976
Filed: Nov 23, 1973
Inventors
Stephen W. Amberg
Ralph G. 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.