Granted Patent
Utility
US 4,357,260 · App. 06/147,808
Dispersible xanthan gum composite
Inventors:
Paul A. Sandford, John K. Baird
Patented Case
View Patent ↗
Granted: Nov 2, 1982
Filed: May 8, 1980
Inventors
Paul A. Sandford
John K. Baird
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.