Granted Patent
Utility
US 5,254,802 · App. 07/625,326
Male sterile brassica plants
Inventors:
Sietske Hoekstra, Arnoldus Johannes Kool, Maria G. Nootebos, Mei Lie Maria Constance Tan
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Dec 10, 1990
Inventors
Sietske Hoekstra
Arnoldus Johannes Kool
Maria G. Nootebos
Mei Lie Maria Constance Tan
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.