Granted Patent
Utility
US 4,784,949 · App. 06/602,118
Universal dominant selectable marker cassette
Inventors:
David H. Gelfand, Frances C. Lawyer, Susanne Stoffel
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: Apr 19, 1984
Inventors
David H. Gelfand
Frances C. Lawyer
Susanne Stoffel
Assignee (at issue)
Cetus 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.