Granted Patent
Utility
US 5,863,548 · App. 08/053,535
Light stable antimicrobial product which is a silver-allantoin complex encapsulated with allantoin
Inventor:
Todd Elder
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Apr 1, 1998
Inventor
Todd Elder
Assignee (at issue)
ISP INVESTMENTS 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.