Granted Patent
Utility
US 4,485,089 · App. 06/542,911
Gel toothpastes
Inventor:
Dianne P. Leipold
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Oct 17, 1983
Inventor
Dianne P. Leipold
Assignee (at issue)
HERCULES 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.