Granted Patent
Utility
US 5,441,992 · App. 08/257,406
Non-CFC foam produced using perfluoroalkanes
Inventors:
Ruben Santos, Paul J. Meunier, Vyacheslav S. Grinshpun, William G. Kipp, Jennifer M. Willson
Patented Case
View Patent ↗
Granted: Aug 15, 1995
Filed: Jun 9, 1994
Inventors
Ruben Santos
Paul J. Meunier
Vyacheslav S. Grinshpun
William G. Kipp
Jennifer M. Willson
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.