Granted Patent
Utility
US 5,646,701 · App. 08/426,052
Trainable transmitter with transmit/receive switch
Inventors:
Paul Duckworth, Kurt Dykema, Mark L. Zeinstra
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Apr 21, 1995
Inventors
Paul Duckworth
Kurt Dykema
Mark L. Zeinstra
Assignee (at issue)
Prince Corporation
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.