Granted Patent
Utility
US 4,946,293 · App. 07/309,428
Gas bearing having an auxiliary reservoir
Inventor:
Israel F. Helms
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Feb 10, 1989
Inventor
Israel F. Helms
Assignee (at issue)
Brown & Sharpe Manufacturing 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.