Granted Patent
Utility
US 5,741,510 · App. 08/629,191
Adhesive patch for applying analgesic medication to the skin
Inventors:
David Rolf, Elisabeth K. Sjoblom Urmann
Patented Case
View Patent ↗
Granted: Apr 21, 1998
Filed: Apr 8, 1996
Inventors
David Rolf
Elisabeth K. Sjoblom Urmann
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.