Granted Patent
Utility
US 3,943,447 · App. 05/513,023
Method and apparatus for bi-directional communication via existing CATV system
Inventor:
Glen Shomo
Patented Case
View Patent ↗
Granted: Mar 9, 1976
Filed: Oct 8, 1974
Inventor
Glen Shomo
Assignee (at issue)
ComSonics, 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.