Granted Patent
Utility
US 4,234,297 · App. 06/002,146
Apparatus for blow molding
Inventor:
Robert F. Kontz
Patented Case
View Patent ↗
Granted: Nov 18, 1980
Filed: Jan 9, 1979
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.