Granted Patent
Utility
US 5,506,313 · App. 08/301,468
Phosphorus-containing flameproofing agents for epoxy resin materials
Inventors:
Peter Flury, Carl W. Mayer, Wolfgang Scharf, Ennio Vanoli
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Sep 7, 1994
Inventors
Peter Flury
Carl W. Mayer
Wolfgang Scharf
Ennio Vanoli
Assignee (at issue)
Ciba-Geigy
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.