Granted Patent
Utility
US 6,469,227 · App. 09/569,783
Antipruritic patch
Inventors:
Dede Cooke, David Rolf
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: May 12, 2000
Inventors
Dede Cooke
David Rolf
Assignee (at issue)
LecTec Corporation
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.