Granted Patent
Utility
US 4,581,421 · App. 06/731,202
Epoxy resin composition containing a curing agent which is a reaction product of imidazole and an aldehyde
Inventors:
Harold G. Waddill, George P. Speranza
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: May 6, 1985
Inventors
Harold G. Waddill
George P. Speranza
Assignee (at issue)
Texaco Inc.
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.