Granted Patent
Utility
US 4,958,529 · App. 07/440,230
Interface for coupling liquid chromatography to solid or gas phase detectors
Inventor:
Marvin L. Vestal
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Nov 22, 1989
Inventor
Marvin L. Vestal
Assignee (at issue)
Vestec Corporation
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.