Granted Patent
Utility
US 4,996,044 · App. 07/378,506
Lipstick formulation and method
Inventors:
Clara G. Mercado, Ann Marshall Krog
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Jul 12, 1989
Inventors
Clara G. Mercado
Ann Marshall Krog
Assignee (at issue)
Revlon
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.