Granted Patent
Utility
US 4,381,624 · App. 06/169,875
High purity hybrid cabbage seed production
Inventors:
Robert H. Lawrence, Jr., Phillip E. Hill
Patented Case
View Patent ↗
Granted: May 3, 1983
Filed: Jul 17, 1980
Inventors
Robert H. Lawrence, Jr.
Phillip E. Hill
Assignee (at issue)
Agrigenetics Research Associates Limited
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.