Granted Patent
Utility
US 4,631,006 · App. 06/703,185
Compact vacuum pump
Inventor:
Gary P. Murray
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Feb 19, 1985
Inventor
Gary P. Murray
Assignee (at issue)
Robinair Division
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.