Granted Patent
Utility
US 6,504,913 · App. 09/326,629
Call handling mechanism
Inventors:
David Patterson, Jean-Michel Leon, Thomas Markson
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Jun 7, 1999
Inventors
David Patterson
Jean-Michel Leon
Thomas Markson
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.