Granted Patent
Utility
US 4,804,535 · App. 07/153,182
Stabilization of multivitamin/trace elements formulations
Inventors:
Morris Kesselman, Abdur R. Purkaystha, James Cahill
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Feb 8, 1988
Inventors
Morris Kesselman
Abdur R. Purkaystha
James Cahill
Assignee (at issue)
Rorer Pharmaceutical 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.