Granted Patent
Utility
US 5,840,999 · App. 08/824,102
Asymmetric benzoxanthene dyes
Inventors:
Scott C. Benson, Steven M. Menchen, Peter D. Theisen, Kevin M. Hennessey, Vergine C. Furniss, Joan Hauser
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Mar 26, 1997
Inventors
Scott C. Benson
Steven M. Menchen
Peter D. Theisen
Kevin M. Hennessey
Vergine C. Furniss
Joan Hauser
Assignee (at issue)
PerkinElmer, 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.