Granted Patent
Utility
US 4,645,668 · App. 06/716,742
Method for the prevention and treatment of scars with enzymes
Inventor:
Sheldon R. Pinnell
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Mar 27, 1985
Inventor
Sheldon R. Pinnell
Assignee (at issue)
Biospecifics, NV
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.