Granted Patent
Utility
US 4,355,983 · App. 06/248,720
Control panel layout sheet and method of making the same
Inventor:
Clarence M. Asbill, III
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Mar 30, 1981
Inventor
Clarence M. Asbill, III
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.