Granted Patent
Utility
US 6,809,129 · App. 10/055,112
Elastomeric intumescent material
Inventor:
Ismat A. Abu-Isa
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jan 23, 2002
Inventor
Ismat A. Abu-Isa
Assignee (at issue)
Delphi Technologies
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.