Granted Patent
Utility
US 5,820,504 · App. 08/647,179
Trochoidal tooth gear assemblies for in-line mechanical power transmission, gear reduction and differential drive
Inventor:
Robert E. Geralde
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: May 9, 1996
Inventor
Robert E. Geralde
Assignee (at issue)
HAWK CORPORATION
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.