Granted Patent
Utility
US 4,999,285 · App. 06/672,568
Chromatographic cassette
Inventor:
S. Nicholas Stiso
Patented Case
View Patent ↗
Granted: Mar 12, 1991
Filed: Nov 15, 1984
Inventor
S. Nicholas Stiso
Assignee (at issue)
Syntex (U.S.A.) LLC
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.