Granted Patent
Utility
US 4,743,334 · App. 06/903,391
Double sided laminating machine
Inventor:
Karl Singer
Patented Case
View Patent ↗
Granted: May 10, 1988
Filed: Sep 3, 1986
Inventor
Karl Singer
Assignee (at issue)
D&K Custom Machine Design, 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.