Granted Patent
Utility
US 6,774,939 · App. 09/514,956
Audio-attached image recording and playback device
Inventor:
Zhiyong Peng
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Feb 29, 2000
Inventor
Zhiyong Peng
Assignee (at issue)
Hewlett-Packard Development Company, L.P.
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.