Granted Patent
Utility
US 4,745,945 · App. 06/910,532
Thermal expansion relief arrangement for closed plumbing system
Inventor:
Louis M. Miller
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Sep 23, 1986
Inventor
Louis M. Miller
Assignee (at issue)
Watts Regulator Co.
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.