Granted Patent
Utility
US 5,604,278 · App. 08/603,572
CPVC compounds and articles made therefrom for design stress rating above 180.degree. F.
Inventor:
Joachim E. Hartitz
Patented Case
View Patent ↗
Granted: Feb 18, 1997
Filed: Feb 20, 1996
Inventor
Joachim E. Hartitz
Assignee (at issue)
B. F. Goodrich Company
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.