Granted Patent
Utility
US 4,981,797 · App. 07/273,646
Process of producing highly transformable cells and cells produced thereby
Inventors:
Joel Jessee, Fredric R. Bloom
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Nov 14, 1988
Inventors
Joel Jessee
Fredric R. Bloom
Assignee (at issue)
LIFE TECHNOLOGIES CORPORATION
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.