Granted Patent
Utility
US 6,757,260 · App. 10/177,592
Ancillary information transmission while user is on hold during a telecommunications device teleconference
Inventor:
Purvin Bibhas Pandit
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Jun 20, 2002
Inventor
Purvin Bibhas Pandit
Assignee (at issue)
Thomson Licensing
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.