Granted Patent
Utility
US 3,947,571 · App. 05/466,946
Lipstick containing microencapsulated oils
Inventors:
John H. Murphy, George Lieberman
Patented Case
View Patent ↗
Granted: Mar 30, 1976
Filed: May 6, 1974
Inventors
John H. Murphy
George Lieberman
Assignee (at issue)
Lanvin-Charles of the Ritz, 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.