Granted Patent
Utility
US 4,754,412 · App. 06/785,351
Arithmetic logic system using the output of a first alu to control the operation of a second alu
Inventor:
Michael F. Deering
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Oct 7, 1985
Inventor
Michael F. Deering
Assignee (at issue)
Schlumberger Systems & Services, 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.