Granted Patent
Utility
US 4,994,653 · App. 07/444,444
Control unit and method of making the same
Inventors:
Brian J. Kadwell, Daniel L. Fowler, Gregory F. Gawron
Patented Case
View Patent ↗
Granted: Feb 19, 1991
Filed: Nov 30, 1989
Inventors
Brian J. Kadwell
Daniel L. Fowler
Gregory F. Gawron
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.