Granted Patent
Utility
US 5,543,979 · App. 08/302,514
Preamplifier circuit arrangements for common current flow in a transducer
Inventor:
Richard Alun Davies
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Sep 8, 1994
Inventor
Richard Alun Davies
Assignee (at issue)
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.