Granted Patent
Utility
US 4,674,113 · App. 06/655,712
Frequency responsive apparatus for reading a meter over a telephone line
Inventors:
William J. Brennan, Charles Cottle
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Sep 28, 1984
Inventors
William J. Brennan
Charles Cottle
Assignee (at issue)
Neptune Water 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.