Granted Patent
Utility
US 5,052,894 · App. 07/362,496
Portable compressed air supply with remote control
Inventor:
Richard M. Rimington
Patented Case
View Patent ↗
Granted: Oct 1, 1991
Filed: Jun 7, 1989
Inventor
Richard M. Rimington
Assignee (at issue)
Mangar Aids Limited
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.