Granted Patent
Utility
US 5,235,007 · App. 07/770,218
Epoxy curing agents
Inventors:
David C. Alexander, Wheeler C. Crawford, Howard P. Klein
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Oct 3, 1991
Inventors
David C. Alexander
Wheeler C. Crawford
Howard P. Klein
Assignee (at issue)
Texaco Chemical 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.