Granted Patent
Utility
US 4,897,345 · App. 07/075,098
Pollen tube growth assay
Inventors:
Philip J. Harris, Marilyn Anne Anderson, Adrienne Elizabeth Clarke
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Jul 20, 1987
Inventors
Philip J. Harris
Marilyn Anne Anderson
Adrienne Elizabeth Clarke
Assignee (at issue)
Lubrizol Genetics, 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.