Granted Patent
Utility
US 4,525,835 · App. 06/433,079
Duplex radio system utilizing time compression expansion
Inventors:
Ian A. W. Vance, Stephen D. Bainton
Patented Case
View Patent ↗
Granted: Jun 25, 1985
Filed: Oct 6, 1982
Inventors
Ian A. W. Vance
Stephen D. Bainton
Assignee (at issue)
International Standard Electric 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.