Granted Patent
Utility
US 5,315,325 · App. 07/747,552
Laser printer cartridges
Inventor:
James W. Strouth
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Aug 20, 1991
Inventor
James W. Strouth
Assignee (at issue)
Recycling Technologies International 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.