Granted Patent
Utility
US 4,501,536 · App. 06/473,367
Compact high torque gerotor-type hydraulic motor
Inventor:
Carle A. Middlekauff
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Mar 8, 1983
Inventor
Carle A. Middlekauff
Assignee (at issue)
W. H. Nichols Company
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.