Granted Patent
Utility
US 5,003,574 · App. 07/330,570
Voice capture system
Inventors:
Dong L. Denq, Linda Mattson, Robert J. Perdue, Eugene L. Rissanen
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Mar 30, 1989
Inventors
Dong L. Denq
Linda Mattson
Robert J. Perdue
Eugene L. Rissanen
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.