Granted Patent
Utility
US 4,524,002 · App. 06/469,069
Foaming agent
Inventor:
Mohamed M. Hashem
Patented Case
View Patent ↗
Granted: Jun 18, 1985
Filed: Feb 23, 1983
Inventor
Mohamed M. Hashem
Assignee (at issue)
GAF Corporation
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.