Granted Patent
Utility
US 6,087,654 · App. 08/926,768
Encoder apparatus and methods
Inventor:
Ormonde G. Durham, III
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Sep 8, 1997
Inventor
Ormonde G. Durham, III
Assignee (at issue)
Opto Generic Devices 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.