Granted Patent
Utility
US 5,618,711 · App. 08/384,490
Recombinant expression vectors and purification methods for Thermus thermophilus DNA polymerase
Inventors:
David H. Gelfand, Frances C. Lawyer, Susanne Stoffel
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Feb 6, 1995
Inventors
David H. Gelfand
Frances C. Lawyer
Susanne Stoffel
Assignee (at issue)
HOFFMANN-LA ROCHE 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.