Granted Patent
Utility
US 4,477,506 · App. 06/391,874
Method and apparatus for making improved laminating film and improved film
Inventor:
James C. Wang
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Jun 24, 1982
Inventor
James C. Wang
Assignee (at issue)
General Binding 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.