Granted Patent
Utility
US 4,580,241 · App. 06/467,834
Graphic word spelling correction using automated dictionary comparisons with phonetic skeletons
Inventor:
Henry Kucera
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Feb 18, 1983
Inventor
Henry Kucera
Assignee (at issue)
Houghton Mifflin Company
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.