Granted Patent
Utility
US 4,331,619 · App. 06/213,716
Ethylene-chlorotrifluoroethylene copolymer foam
Inventors:
Daniel C. Chung, William A. Miller, Eugene R. Baumgaertner
Patented Case
View Patent ↗
Granted: May 25, 1982
Filed: Dec 8, 1980
Inventors
Daniel C. Chung
William A. Miller
Eugene R. Baumgaertner
Assignee (at issue)
ALLIED CONSULTING, INC.
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.