Granted Patent
Utility
US 4,539,200 · App. 06/548,876
Treatment of skin lesions
Inventor:
Alan J. Quarfoot
Patented Case
View Patent ↗
Granted: Sep 3, 1985
Filed: Nov 4, 1983
Inventor
Alan J. Quarfoot
Assignee (at issue)
The Kendall Company LP
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.