Granted Patent
Utility
US 4,756,828 · App. 06/599,386
Chromatographic strip having non-compressed edges
Inventors:
David J. Litman, Robert F. Zuk, Gerald William Rowley
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Apr 12, 1984
Inventors
David J. Litman
Robert F. Zuk
Gerald William Rowley
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.