Granted Patent
Utility
US 4,267,968 · App. 06/060,671
Pneumatic control system and parts therefor and methods of making the same
Inventor:
Douglas R. Scott
Patented Case
View Patent ↗
Granted: May 19, 1981
Filed: Jul 25, 1979
Inventor
Douglas R. Scott
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.