Granted Patent
Utility
US 5,202,065 · App. 07/683,638
Ultrasonic method of producing a score in a thermoplastic film pouch
Inventors:
John G. Lenander, Robert William Hinley, Jr.
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Apr 11, 1991
Inventors
John G. Lenander
Robert William Hinley, Jr.
Assignee (at issue)
Baxter International 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.