Granted Patent
Utility
US 4,340,439 · App. 06/233,276
Process of using a cushion for laminating operations
Inventor:
Harold C. Giesler
Patented Case
View Patent ↗
Granted: Jul 20, 1982
Filed: Feb 10, 1981
Inventor
Harold C. Giesler
Assignee (at issue)
Formica 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.