Granted Patent
Utility
US 6,013,717 · App. 08/666,766
Free flowing powder composition, process for its preparation and homogeneous layer derived therefrom
Inventors:
Catherine Maris, Olivier Roumache
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Jun 19, 1996
Inventors
Catherine Maris
Olivier Roumache
Assignee (at issue)
SHELL OIL 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.