Granted Patent
Utility
US 4,903,545 · App. 07/319,164
Hydrostatic transmission center section
Inventors:
Joseph E. Louis, Alan Johnson
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Mar 3, 1989
Inventors
Joseph E. Louis
Alan Johnson
Assignee (at issue)
Sundstrand-Sauer
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.