Granted Patent
Utility
US 4,178,361 · App. 05/636,494
Sustained release pharmaceutical composition
Inventors:
Arthur I. Cohen, James S. Y. Sim, Maurice H. Van Horn, Stanley E. Gordesky, Stanley I. Gordon
Patented Case
View Patent ↗
Granted: Dec 11, 1979
Filed: Dec 1, 1975
Inventors
Arthur I. Cohen
James S. Y. Sim
Maurice H. Van Horn
Stanley E. Gordesky
Stanley I. Gordon
Assignee (at issue)
UNION CO., LTD.
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.