Granted Patent
Utility
US 4,845,341 · App. 07/180,397
Heating system, control device therefor and methods of making the same
Inventor:
Richard H. Rae
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Apr 12, 1988
Inventor
Richard H. Rae
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.