Granted Patent
Utility
US 6,304,191 · App. 09/281,707
Uni-directional protocol
Inventors:
David E. Campbell, Eric T. Kiser
Patented Case
View Patent ↗
Granted: Oct 16, 2001
Filed: Mar 30, 1999
Inventors
David E. Campbell
Eric T. Kiser
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.