Granted Patent
Utility
US 4,689,768 · App. 06/820,905
Spelling verification system with immediate operator alerts to non-matches between inputted words and words stored in plural dictionary memories
Inventors:
Roderick S. Heard, Joseph C. Tremoulet
Patented Case
View Patent ↗
Granted: Aug 25, 1987
Filed: Jan 16, 1986
Inventors
Roderick S. Heard
Joseph C. Tremoulet
Assignee (at issue)
International Business Machines 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.