Granted Patent
Utility
US 5,743,953 · App. 08/762,670
Heat curable alumino-silicate binder systems and their use
Inventors:
Helena Twardowska, John Cooper, Yuliy Yunovich
Patented Case
View Patent ↗
Granted: Apr 28, 1998
Filed: Dec 11, 1996
Inventors
Helena Twardowska
John Cooper
Yuliy Yunovich
Assignee (at issue)
Ashland, Inc.
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.