Granted Patent
Utility
US 4,450,870 · App. 06/357,968
Liquid spring accumulator with self-charging means
Inventor:
Ralph L. Vick
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: Mar 15, 1982
Inventor
Ralph L. Vick
Assignee (at issue)
Bendix Limited
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.