Granted Patent
Utility
US 4,316,003 · App. 06/199,801
Epoxy resin curing agents
Inventors:
Mark F. Dante, Roy A. Allen
Patented Case
View Patent ↗
Granted: Feb 16, 1982
Filed: Oct 23, 1980
Inventors
Mark F. Dante
Roy A. Allen
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.