Granted Patent
Utility
US 6,697,638 · App. 09/430,690
Intelligent portable phone with dual mode operation for automobile use
Inventors:
Torbjorn Larsson, Donald R. Green, Jr.
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Oct 29, 1999
Inventors
Torbjorn Larsson
Donald R. Green, Jr.
Assignee (at issue)
DENSO 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.