IP Library Granted Patent US 4,404,556
Granted Patent Utility
US 4,404,556 · App. 06/325,152

Bit expansion circuit

Inventors: Joseph A. Messina, William R. Sullivan
Patented Case View Patent ↗
Granted: Sep 13, 1983 Filed: Nov 25, 1981
Inventors
Joseph A. Messina
William R. Sullivan
Assignee (at issue)
Western Electric Company, 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.

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Quick Facts
Patent No.
US 4,404,556
App. No.
06/325,152
Filed
1981-11-25
Granted
1983-09-13
Kind
A