Granted Patent
Utility
US 4,224,263 · App. 05/886,488
Method for blow molding
Inventor:
Robert F. Kontz
Patented Case
View Patent ↗
Granted: Sep 23, 1980
Filed: Mar 14, 1978
Inventor
Robert F. Kontz
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.