Granted Patent
Utility
US 5,428,608 · App. 08/176,004
Call connection technique
Inventors:
Brian Freeman, Bruce L. Hanson, Mark Meier Rochkind, Lee B. Strahs
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Dec 30, 1993
Inventors
Brian Freeman
Bruce L. Hanson
Mark Meier Rochkind
Lee B. Strahs
Assignee (at issue)
AT&T CORP.
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.