Granted Patent
Utility
US 4,774,339 · App. 07/083,458
Chemically reactive dipyrrometheneboron difluoride dyes
Inventors:
Richard P. Haugland, Hee Chol Kang
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Aug 10, 1987
Inventors
Richard P. Haugland
Hee Chol Kang
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.