Granted Patent
Utility
US 5,364,501 · App. 07/934,697
Enzymatic deinking process with pH shift and addition of alkaline cellulase
Inventors:
Jean-Luc A. G. Baret, Marc Leclerc, Jean-Pierre Lamort
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Oct 14, 1992
Inventors
Jean-Luc A. G. Baret
Marc Leclerc
Jean-Pierre Lamort
Assignee (at issue)
Novo Nordisk 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.