Granted Patent
Utility
US 4,269,751 · App. 06/019,266
Kneadable mastic composition comprised of epoxy resin and aromatic diamine curing agent
Inventor:
Francis G. Firth
Patented Case
View Patent ↗
Granted: May 26, 1981
Filed: Mar 9, 1979
Inventor
Francis G. Firth
Assignee (at issue)
Applied Plastics Co., 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.