Granted Patent
Utility
US 5,540,983 · App. 08/509,807
Conveyor belts derived from compositions comprising vinyl aromatic-conjugated diene block copolymers
Inventors:
Catherine Maris, Peter Migchels, Hans F. Vermeire
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Aug 1, 1995
Inventors
Catherine Maris
Peter Migchels
Hans F. Vermeire
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.