Granted Patent
Utility
US 5,010,733 · App. 07/328,470
Hydrostatic transmission with hydraulic bypass and air bleed
Inventor:
Alan Johnson
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Mar 24, 1989
Inventor
Alan Johnson
Assignee (at issue)
Sauer-Sundstrand GmbH & 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.