Granted Patent
Utility
US 6,377,435 · App. 09/428,800
Circuit design for data/telephone tip/ring pair surge protection
Inventors:
Robert E. Nabell, Bryan R. Cole
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Oct 28, 1999
Inventors
Robert E. Nabell
Bryan R. Cole
Assignee (at issue)
Emerson Electric 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.