Granted Patent
Utility
US 5,062,889 · App. 07/546,459
Process for the preparation of hydrocolloid mixtures having improved dispersibility
Inventors:
Frank Hohl, Jorn Breckwoldt
Patented Case
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Granted: Nov 5, 1991
Filed: Jun 29, 1990
Inventors
Frank Hohl
Jorn Breckwoldt
Assignee (at issue)
Wolff Walsrode AG
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.