Granted Patent
Utility
US 5,227,004 · App. 07/670,244
Method and apparatus for producing laminated material
Inventor:
Melvin R. Belger
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Mar 15, 1991
Inventor
Melvin R. Belger
Assignee (at issue)
Graphic Technology Systems, 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.