Granted Patent
Utility
US 5,137,987 · App. 07/668,826
Thermosettable polyol resins
Inventors:
Olivier Andre, Carien H. P. Gerets, Henricus P. H. Scholten
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Mar 13, 1991
Inventors
Olivier Andre
Carien H. P. Gerets
Henricus P. H. Scholten
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.