Granted Patent
Utility
US 4,528,273 · App. 06/554,452
Microorganism strains for the fermentative preparation of L-serine
Inventors:
Gerald G. Lovinger, Susan Whitehead
Patented Case
View Patent ↗
Granted: Jul 9, 1985
Filed: Nov 22, 1983
Inventors
Gerald G. Lovinger
Susan Whitehead
Assignee (at issue)
W. R. Grace & Co.
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.