Granted Patent
Utility
US 6,538,577 · App. 09/242,792
Electronic electric meter for networked meter reading
Inventors:
Lance A. Ehrke, Kimbel A. Nap, Donn R. Dresselhuys
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Feb 23, 1999
Inventors
Lance A. Ehrke
Kimbel A. Nap
Donn R. Dresselhuys
Assignee (at issue)
SILVER SPRING NETWORKS, INC.
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.