Granted Patent
Utility
US 4,903,833 · App. 07/258,970
Cartridge for web-type media material
Inventor:
Jack Beery
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Oct 17, 1988
Inventor
Jack Beery
Assignee (at issue)
The Mead 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.