Granted Patent
Utility
US 5,984,552 · App. 09/028,105
Locking lipstick container
Inventors:
Walter T. Ackermann, Thomas F. Holloway
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Feb 23, 1998
Inventors
Walter T. Ackermann
Thomas F. Holloway
Assignee (at issue)
Risdon Corporation
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.