Granted Patent
Utility
US 5,935,572 · App. 08/781,643
Composition containing protease separate from glycosidase for removing nits in treating lice infestation
Inventors:
James A. Hayward, David C. Watkins
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Jan 10, 1997
Inventors
James A. Hayward
David C. Watkins
Assignee (at issue)
Collaborative Laboratories, Inc.
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.