Granted Patent
Utility
US 6,480,587 · App. 09/642,872
Intelligent keyboard system
Inventors:
Sanjay K. Rao, Sunil K. Rao, Raman K. Rao
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Aug 21, 2000
Inventors
Sanjay K. Rao
Sunil K. Rao
Raman K. Rao
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.