Granted Patent
Utility
US 4,016,264 · App. 05/595,941
Wart treatment with phosphonoacetic acid or derivatives thereof
Inventor:
Leland L. Clark
Patented Case
View Patent ↗
Granted: Apr 5, 1977
Filed: Jul 14, 1975
Inventor
Leland L. Clark
Assignee (at issue)
THE UNIVERSITY OF UTAH
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.