Granted Patent
Utility
US 5,396,414 · App. 07/951,501
Adaptive noise cancellation
Inventor:
Jerry M. Alcone
Patented Case
View Patent ↗
Granted: Mar 7, 1995
Filed: Sep 25, 1992
Inventor
Jerry M. Alcone
Assignee (at issue)
Hughes Aircraft Company
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.