Granted Patent
Utility
US 6,786,397 · App. 10/291,717
Computer system control via interface surface with coded marks
Inventors:
Kia Silverbrook, Paul Lapstun
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Nov 12, 2002
Inventors
Kia Silverbrook
Paul Lapstun
Assignee (at issue)
Silverbrook Research Pty Ltd
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.