Granted Patent
Utility
US 4,190,764 · App. 05/856,353
Control system and method and control device therefor
Inventor:
Cloyd E. Decker
Patented Case
View Patent ↗
Granted: Feb 26, 1980
Filed: Dec 1, 1977
Inventor
Cloyd E. Decker
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.