Granted Patent
Utility
US 6,621,440 · App. 10/114,507
Digital to analogue converter
Inventor:
Christopher M. Gorman
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Apr 2, 2002
Inventor
Christopher M. Gorman
Assignee (at issue)
KONINKLIJKE PHILIPS ELECTRONICS NV
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.