Granted Patent
Utility
US 4,359,477 · App. 06/230,716
Enterochelin complexes
Inventor:
Henry Rogers
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Feb 2, 1981
Inventor
Henry Rogers
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION
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.