Granted Patent
Utility
US 6,570,870 · App. 09/239,242
Method and system for making a charged telephone call during an Internet browsing session
Inventor:
Viktors Berstis
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Jan 28, 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.