Granted Patent
Utility
US 4,950,674 · App. 07/159,940
Arylalkylheterocyclic amines,N-substituted by aryloxyalkyl group in a method for allergy treatment
Inventors:
John M. Yanni, David A. Walsh
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Feb 24, 1988
Inventors
John M. Yanni
David A. Walsh
Assignee (at issue)
A. H. Robins Company, Incorporated
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.