Granted Patent
Utility
US 5,540,863 · App. 08/366,669
Mixtures of polyamino acids and citrate
Inventors:
Louis L. Wood, Gary J. Calton
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Dec 30, 1994
Inventors
Louis L. Wood
Gary J. Calton
Assignee (at issue)
Bayer Aktiengesellschaft
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.