Granted Patent
Utility
US 4,728,805 · App. 06/929,404
Synaptic radio frequency interactive systems with photoresponsive switching
Inventor:
Richard C. Dempsey
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: Nov 10, 1986
Inventor
Richard C. Dempsey
Assignee (at issue)
California Microwave
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.