Granted Patent
Utility
US 5,553,137 · App. 08/349,336
Method and apparatus for echo canceling in a communication system
Inventors:
Scott O. Nyhart, Tan V. Doan
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Dec 5, 1994
Inventors
Scott O. Nyhart
Tan V. Doan
Assignee (at issue)
Motorola, 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.