Granted Patent
Utility
US 6,492,807 · App. 09/778,344
Absolute angle sensor for multi-turn shaft
Inventor:
Charles Spellman
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Feb 6, 2001
Inventor
Charles Spellman
Assignee (at issue)
Siemens VDO Automotive AG
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.