Granted Patent
Utility
US 5,244,615 · App. 07/985,665
Process for the production of permeation resistant containers
Inventor:
John Peter Hobbs
Patented Case
View Patent ↗
Granted: Sep 14, 1993
Filed: Dec 3, 1992
Inventor
John Peter Hobbs
Assignee (at issue)
Air Products and Chemicals, 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.