Granted Patent
Utility
US 6,604,434 · App. 09/602,038
Method and apparatus for determining the direction and rate of a rotating element
Inventors:
David Hamilton, Walter T. Castleberry, John R. Scarborough, III
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Jun 23, 2000
Inventors
David Hamilton
Walter T. Castleberry
John R. Scarborough, III
Assignee (at issue)
Neptune Technology Group LLC
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.