Granted Patent
Utility
US 5,587,896 · App. 07/553,915
Self-tuning controller
Inventors:
Peter D. Hansen, Edgar H. Bristol
Patented Case
View Patent ↗
Granted: Dec 24, 1996
Filed: Jul 16, 1990
Inventors
Peter D. Hansen
Edgar H. Bristol
Assignee (at issue)
Fox Boro Company
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.