Granted Patent
Utility
US 6,188,429 · App. 09/053,968
Video TTY device and method for videocommunication
Inventors:
Bryan R. Martin, Truman Joe, Richard Medugno
Patented Case
View Patent ↗
Granted: Feb 13, 2001
Filed: Apr 2, 1998
Inventors
Bryan R. Martin
Truman Joe
Richard Medugno
Assignee (at issue)
ENERGY PARTNER NETWORK 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.