Granted Patent
Utility
US 4,623,536 · App. 06/744,497
Sodium bicarbonate containing toothpaste
Inventors:
Anthony E. Winston, Raymond Brown, Norman Usen, Anthony Ansaldi
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Jun 13, 1985
Inventors
Anthony E. Winston
Raymond Brown
Norman Usen
Anthony Ansaldi
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.