Granted Patent
Utility
US 5,406,285 · App. 08/023,359
Digital-to-analog converter
Inventors:
Jan Christian Diffenderfer, Joseph H. Colles
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: Feb 26, 1993
Inventors
Jan Christian Diffenderfer
Joseph H. Colles
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.