Granted Patent
Utility
US 4,906,992 · App. 07/158,319
Single track absolute encoder
Inventors:
Sidney A. Wingate, Gregory J. Rust
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Feb 22, 1988
Inventors
Sidney A. Wingate
Gregory J. Rust
Assignee (at issue)
Dynamics Research 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.