Granted Patent
Utility
US 5,465,413 · App. 08/027,004
Adaptive noise cancellation
Inventors:
Per K. Enge, Dominic Gerard Farmer, Brian Westfall
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: Mar 5, 1993
Inventors
Per K. Enge
Dominic Gerard Farmer
Brian Westfall
Assignee (at issue)
Trimble Navigation Limited
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.