Granted Patent
Utility
US 4,643,391 · App. 06/723,068
Fuel control valve construction, parts therefor and methods of making the same
Inventor:
Samuel T. Kelly
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: Apr 15, 1985
Inventor
Samuel T. Kelly
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.