Granted Patent
Utility
US 4,550,193 · App. 06/385,953
Process for the preparation of 2,3-dimercaptosuccinic acid and its lower alkyl esters
Inventors:
Martin K. Lindemann, Elvin R. Lukenbach
Patented Case
View Patent ↗
Granted: Oct 29, 1985
Filed: Jun 7, 1982
Inventors
Martin K. Lindemann
Elvin R. Lukenbach
Assignee (at issue)
Johnson & Johnson Baby Products 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.