Granted Patent
Utility
US 4,646,287 · App. 06/679,456
Idle period signalling in a packet switching system
Inventors:
Mikiel L. Larson, Anne A. Robrock, Wing N. Toy
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Dec 7, 1984
Inventors
Mikiel L. Larson
Anne A. Robrock
Wing N. Toy
Assignee (at issue)
AT&T Bell Laboratories
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.