Granted Patent
Utility
US 5,284,929 · App. 08/029,192
Epoxy resins with cyclohexenenorbornene moieties
Inventors:
Pen-Chung Wang, Donald R. Kelsey
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Mar 10, 1993
Inventors
Pen-Chung Wang
Donald R. Kelsey
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.