Granted Patent
Utility
US 4,473,295 · App. 06/298,067
Parabolic focusing apparatus for optical spectroscopy
Inventor:
Walter M. Doyle
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Aug 31, 1981
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.