Granted Patent
Utility
US 4,945,171 · App. 07/083,459
Xanthene dyes having a fused (C) benzo ring
Inventors:
Richard P. Haugland, James E. Whitaker
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Aug 10, 1987
Inventors
Richard P. Haugland
James E. Whitaker
Assignee (at issue)
Molecular Probes, 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.