Granted Patent
Utility
US 4,476,292 · App. 06/574,823
Castable polyurethane systems
Inventors:
Nancy M. Ham, Teruko U. Miyazaki
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Jan 30, 1984
Inventors
Nancy M. Ham
Teruko U. Miyazaki
Assignee (at issue)
Ciba-Geigy
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.