Granted Patent
Utility
US 4,647,559 · App. 06/867,467
Bicyclic benzenoid aminoalkylene ethers and thioethers, pharmaceutical compositions and use
Inventors:
Donald E. Kuhla, Henry F. Campbell, William L. Studt
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: May 23, 1986
Inventors
Donald E. Kuhla
Henry F. Campbell
William L. Studt
Assignee (at issue)
William H. Rorer, 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.