Granted Patent
Utility
US 4,641,223 · App. 06/771,102
Protective shield for external parts of a control arrangement
Inventor:
Harold A. McIntosh
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Aug 30, 1985
Inventor
Harold A. McIntosh
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.