Granted Patent
Utility
US 4,928,900 · App. 07/274,872
Encoded cartridge
Inventor:
Jack Beery
Patented Case
View Patent ↗
Granted: May 29, 1990
Filed: Nov 21, 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.