Granted Patent
Utility
US 5,183,663 · App. 07/362,800
Treating skin lesions
Inventor:
Richard W. Greiner
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Jun 7, 1989
Inventor
Richard W. Greiner
Assignee (at issue)
HERCULES LLC
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.