Granted Patent
Utility
US 4,654,086 · App. 06/703,831
Dispersible xanthan gum
Inventors:
John K. Baird, Paul A. Sandford
Patented Case
View Patent ↗
Granted: Mar 31, 1987
Filed: Feb 21, 1985
Inventors
John K. Baird
Paul A. Sandford
Assignee (at issue)
MERCK & 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.