Granted Patent
Utility
US 5,931,078 · App. 08/844,089
Hydrostatic drive system
Inventor:
Walter Kropp
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Apr 18, 1997
Inventor
Walter Kropp
Assignee (at issue)
Linde GmbH
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.