Granted Patent
Utility
US 4,748,274 · App. 06/928,759
4-hydroxy-4-(substituted alkenyl)cyclohexanecarboxylic acids
Inventors:
Robert J. Cregge, Nelsen L. Lentz
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Nov 7, 1986
Inventors
Robert J. Cregge
Nelsen L. Lentz
Assignee (at issue)
Merrell Dow Pharmaceuticals Inc.
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.