Granted Patent
Utility
US 5,759,692 · App. 08/810,551
Phosphorous-modified coating compositions, a process for their preparation, and their use as an intumescent coating
Inventors:
Guido Scholz, Sebastian Harold, Wolf-Dieter Pirig
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Mar 3, 1997
Inventors
Guido Scholz
Sebastian Harold
Wolf-Dieter Pirig
Assignee (at issue)
Hoechst GmbH
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.