Granted Patent
Utility
US 4,363,669 · App. 06/100,315
Dispersible xanthan gum blends
Inventors:
Ian W. Cottrell, Paul A. Sandford, John K. Baird
Patented Case
View Patent ↗
Granted: Dec 14, 1982
Filed: Dec 5, 1979
Inventors
Ian W. Cottrell
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.