Granted Patent
Utility
US 5,608,147 · App. 08/358,117
tfdA gene selectable markers in plants and the use thereof
Inventor:
Bryan Kaphammer
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Dec 15, 1994
Inventor
Bryan Kaphammer
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.