Granted Patent
Utility
US 4,482,300 · App. 06/378,676
Reversible pump coupling apparatus
Inventor:
Robert E. Brown
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: May 17, 1982
Inventor
Robert E. Brown
Assignee (at issue)
Caterpillar Tractor Co.
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.