Granted Patent
Utility
US 6,673,933 · App. 10/104,277
Antihistaminic piperidine derivatives and intermediates for the preparation thereof
Inventor:
Timothy A. Ayers
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Mar 22, 2002
Inventor
Timothy A. Ayers
Assignee (at issue)
Aventis 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.