Granted Patent
Utility
US 6,819,639 · App. 09/370,798
Method and apparatus for multi-channel auto-focus
Inventor:
Daniel Gelbart
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Jul 15, 1999
Inventor
Daniel Gelbart
Assignee (at issue)
Creo SRL
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.