Granted Patent
Utility
US 6,708,571 · App. 10/065,458
Temperature compensated rotary meter
Inventors:
Helmut W. Hopfe, Alexander R. Podgers
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Oct 21, 2002
Inventors
Helmut W. Hopfe
Alexander R. Podgers
Assignee (at issue)
American Meter Company
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.