Granted Patent
Utility
US 4,278,821 · App. 06/062,762
.omega.,.omega.-Bis(dialkylhydroxyphenyl) alkanols as intermediates in making effective antioxidants
Inventor:
David J. Tracy
Patented Case
View Patent ↗
Granted: Jul 14, 1981
Filed: Aug 1, 1979
Inventor
David J. Tracy
Assignee (at issue)
GAF Corporation
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.