Granted Patent
Utility
US 4,923,314 · App. 07/141,247
Thesaurus feature for electronic typewriters
Inventors:
Raymond A. Blanchard, Jr., Richard Roberts
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Jan 6, 1988
Inventors
Raymond A. Blanchard, Jr.
Richard Roberts
Assignee (at issue)
Smith Corona Corp.
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.