Granted Patent
Utility
US 4,876,024 · App. 06/893,879
Enzymatic detergent additive, a detergent, and a washing method
Inventors:
Michiyo Enomoto, Steen Riisgaard
Patented Case
View Patent ↗
Granted: Oct 24, 1989
Filed: Aug 6, 1986
Inventors
Michiyo Enomoto
Steen Riisgaard
Assignee (at issue)
Novo Industri 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.