Granted Patent
Utility
US 5,696,749 · App. 08/672,735
Dual-wavelength optical recording head utilizing grating beam splitter and integrated laser and detectors
Inventors:
John C. Brazas, Jr., David B. Kay
Patented Case
View Patent ↗
Granted: Dec 9, 1997
Filed: Jun 28, 1996
Inventors
John C. Brazas, Jr.
David B. Kay
Assignee (at issue)
EASTMAN KODAK COMPANY
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.