Granted Patent
Utility
US 4,953,426 · App. 07/318,731
Housing support for hydraulic displacement unit swashplate
Inventor:
Alan Johnson
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Mar 3, 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.