Granted Patent
Utility
US 4,868,293 · App. 07/099,618
Polysaccharide polymer made by xanthomonas
Inventors:
Rebecca W. Vanderslice, Patrick Shannon
Patented Case
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Granted: Sep 19, 1989
Filed: Sep 22, 1987
Inventors
Rebecca W. Vanderslice
Patrick Shannon
Assignee (at issue)
Getty Scientific Development Company
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.