Granted Patent
Utility
US 6,204,754 · App. 09/335,297
Proximity indicating system
Inventor:
Viktors Berstis
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Jun 17, 1999
Inventor
Viktors Berstis
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.