Granted Patent
Utility
US 4,264,678 · App. 06/043,161
Core-shell polymers
Inventors:
Suzanne B. Nelsen, Edward Wotier, Dru W. Alwani, Yehuda Ozari
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: May 29, 1979
Inventors
Suzanne B. Nelsen
Edward Wotier
Dru W. Alwani
Yehuda Ozari
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.