Granted Patent
Utility
US 4,551,682 · App. 06/455,041
Digital sine-cosine generator
Inventors:
Albert J. Charpentier, James Redfield, David W. DiOrio
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: Jan 3, 1983
Inventors
Albert J. Charpentier
James Redfield
David W. DiOrio
Assignee (at issue)
Commodore Business Machines, Inc.
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.