Granted Patent
Utility
US 6,310,237 · App. 09/619,133
Process for the preparation and uses of derivatives of esters of .alpha.-methylene-.beta.-hydroxy acids
Inventors:
Xu Wu Feng, Walter Nudenberg
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Jul 18, 2000
Inventors
Xu Wu Feng
Walter Nudenberg
Assignee (at issue)
Uniroyal Chemical Company, 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.