Granted Patent
Utility
US 4,867,355 · App. 07/285,814
Self-contained cartridge means
Inventor:
John A. Vanderjagt
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Dec 16, 1988
Inventor
John A. Vanderjagt
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.