Granted Patent
Utility
US 4,935,633 · App. 07/255,690
Low power infrared source assembly for spectrometer
Inventors:
Raul Curbelo, David C. Brown
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Oct 11, 1988
Inventors
Raul Curbelo
David C. Brown
Assignee (at issue)
Bio-Rad Laboratories, Inc.
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.