Granted Patent
Utility
US 5,453,976 · App. 07/793,399
Audio signal processor circuit
Inventors:
Derek N. Glanville, Robin A. Emley
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Mar 6, 1992
Inventors
Derek N. Glanville
Robin A. Emley
Assignees (at issue)
GPT Limited
Plessey Semiconductors Ltd
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.