Granted Patent
Utility
US 5,322,770 · App. 07/455,611
Reverse transcription with thermostable DNA polymerases - high temperature reverse transcription
Inventor:
David H. Gelfand
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Dec 22, 1989
Inventor
David H. Gelfand
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.