Granted Patent
Utility
US 4,810,093 · App. 07/173,562
Versatile and efficient radiation transmission apparatus and method for spectrometers
Inventor:
Walter M. Doyle
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Mar 25, 1988
Inventor
Walter M. Doyle
Assignee (at issue)
Laser Precision Corp.
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.