Granted Patent
Utility
US 4,357,191 · App. 06/298,860
Laminar thermoplastic film constructions
Inventors:
Edward M. Bullard, Gregory M. Smith
Patented Case
View Patent ↗
Granted: Nov 2, 1982
Filed: Sep 3, 1981
Inventors
Edward M. Bullard
Gregory M. Smith
Assignee (at issue)
Mobil Oil Corporation
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.