Granted Patent
Utility
US 4,802,633 · App. 07/209,714
Movable cartridge lock
Inventor:
Jack Beery
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Jun 22, 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.