Granted Patent
Utility
US 4,557,780 · App. 06/542,031
Method of making an oriented polymeric film
Inventors:
David L. Newsome, Arnold R. Rein, Bradley J. Hoss, George O. Schroeder
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Oct 14, 1983
Inventors
David L. Newsome
Arnold R. Rein
Bradley J. Hoss
George O. Schroeder
Assignee (at issue)
American Can Company
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.