Granted Patent
Utility
US 5,962,282 · App. 09/077,192
Production of optically active 2-substituted tetrahydropyran-4-ones
Inventors:
Robert Antony Holt, Stuart Richard Rigby, David Waterson
Patented Case
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Granted: Oct 5, 1999
Filed: May 26, 1998
Inventors
Robert Antony Holt
Stuart Richard Rigby
David Waterson
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.