Granted Patent
Utility
US 4,943,429 · App. 07/197,218
Dentifrice gels containing sodium bicarbonate
Inventors:
Anthony E. Winston, Regina M. Miskewitz
Patented Case
View Patent ↗
Granted: Jul 24, 1990
Filed: May 23, 1988
Inventors
Anthony E. Winston
Regina M. Miskewitz
Assignee (at issue)
Church & Dwight Co., 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.