Granted Patent
Utility
US 4,665,380 · App. 06/755,170
Apparatus for converting between digital and analog values
Inventor:
Lanny L. Lewyn
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Jul 15, 1985
Inventor
Lanny L. Lewyn
Assignee (at issue)
Brooktree Corporation
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.