Granted Patent
Utility
US 5,902,634 · App. 08/586,312
Permeable solar control film
Inventors:
Peter Maschwitz, Jonathan S. Payne, Paul Diffendaffer
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Jan 17, 1996
Inventors
Peter Maschwitz
Jonathan S. Payne
Paul Diffendaffer
Assignee (at issue)
Courtaulds Performance Films
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.