Granted Patent
Utility
US 4,753,090 · App. 06/917,798
Device for processing leather or hide products
Inventor:
Erwin Biesinger
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Nov 10, 1986
Inventor
Erwin Biesinger
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.