Granted Patent
Utility
US 4,302,539 · App. 06/164,392
Novel single cell protein substrate
Inventors:
J. Gustav Schulz, Pamela M. Bunting
Patented Case
View Patent ↗
Granted: Nov 24, 1981
Filed: Jun 30, 1980
Inventors
J. Gustav Schulz
Pamela M. Bunting
Assignee (at issue)
Gulf Research & Development Company
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.