Granted Patent
Utility
US 4,711,894 · App. 06/819,779
Stabilized tocopherol in dry, particulate, free-flowing form
Inventors:
Bruce E. Wenzel, James P. Clark
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Jan 16, 1986
Inventors
Bruce E. Wenzel
James P. Clark
Assignee (at issue)
Henkel Limited
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.