Granted Patent
Utility
US 4,722,905 · App. 06/445,711
Semiconductors
Inventors:
Colin L. Honeybourne, Richard Ewen
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: Nov 30, 1982
Inventors
Colin L. Honeybourne
Richard Ewen
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.