Granted Patent
Utility
US 5,651,737 · App. 08/588,289
Drill motor coupling for misaligned rotating shafts
Inventor:
F. L. Le Blanc
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Jan 18, 1996
Inventor
F. L. Le Blanc
Assignee (at issue)
Drill Motor Services, Inc.
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.