Granted Patent
Utility
US 6,549,153 · App. 09/973,805
Digital to analog conversion method and apparatus
Inventors:
Patrik Eriksson, Peter Petersson
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Oct 11, 2001
Inventors
Patrik Eriksson
Peter Petersson
Assignee (at issue)
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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.