Granted Patent
Utility
US 4,469,851 · App. 06/501,672
Molding composition
Inventors:
John J. Charles, Suzanne B. Nelsen
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Jun 6, 1983
Inventors
John J. Charles
Suzanne B. Nelsen
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.