Granted Patent
Utility
US 4,233,022 · App. 05/922,931
Apparatus for forming heat treated blown thermoplastic articles
Inventors:
Thomas E. Brady, Santos W. Go
Patented Case
View Patent ↗
Granted: Nov 11, 1980
Filed: Jul 10, 1978
Inventors
Thomas E. Brady
Santos W. Go
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.