Granted Patent
Utility
US 4,133,767 · App. 05/806,457
Chromatographic apparatus and method
Inventors:
Stephen R. Bakalyar, Ronald E. Honganen
Patented Case
View Patent ↗
Granted: Jan 9, 1979
Filed: Jun 14, 1977
Inventors
Stephen R. Bakalyar
Ronald E. Honganen
Assignee (at issue)
Spectra-Physics, 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.