Granted Patent
Utility
US 5,251,510 · App. 07/760,938
Ring gear fixture and machining process therefor
Inventors:
Neil R. Trim, Robert Cable
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: Sep 17, 1991
Inventors
Neil R. Trim
Robert Cable
Assignee (at issue)
DANA 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.