Granted Patent
Utility
US 4,339,534 · App. 06/136,661
Process for enzymatic production of peptides
Inventors:
Jack T. Johansen, Fred Widmer
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: Apr 2, 1980
Inventors
Jack T. Johansen
Fred Widmer
Assignee (at issue)
De Forenede Bryggeier A/S
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.