Granted Patent
Utility
US 5,312,909 · App. 07/673,833
Recombinant DNA encoding neutral trehalase
Inventors:
Marianne Driessen, Klaas A. Osinga, Margareta A. Herweijer
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Mar 22, 1991
Inventors
Marianne Driessen
Klaas A. Osinga
Margareta A. Herweijer
Assignee (at issue)
Gist-Brocades N.V.
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.