Granted Patent
Utility
US 6,715,359 · App. 10/184,080
Pressure sensitive surfaces
Inventors:
David Lokhorst, Sathya R. Alexander
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Jun 28, 2002
Inventors
David Lokhorst
Sathya R. Alexander
Assignee (at issue)
Tactex Controls Inc.
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.