Granted Patent
Utility
US 6,563,426 · App. 09/845,005
Warning method and apparatus
Inventor:
Louis Paul Herzberg
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Jul 3, 2001
Inventor
Louis Paul Herzberg
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.