Granted Patent
Utility
US 5,789,482 · App. 07/952,122
Epoxy resin with anhydride, toughener and active hydrogen-containing compound
Inventors:
Sameer H. Eldin, Jurg Maurer, Robert P. Peyer, Peter Grieshaber, Francois Rime
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Sep 28, 1992
Inventors
Sameer H. Eldin
Jurg Maurer
Robert P. Peyer
Peter Grieshaber
Francois Rime
Assignee (at issue)
Ciba Specialty Chemicals Corporation
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.