Granted Patent
Utility
US 6,134,786 · App. 09/240,341
Method for improvement of involute and lead error in powder metal gears
Inventors:
Scott D. Graupner, John Engquist, Steven T. Haye
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Jan 29, 1999
Inventors
Scott D. Graupner
John Engquist
Steven T. Haye
Assignee (at issue)
AMSTED INDUSTRIES INCORPORATED
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.