Granted Patent
Utility
US 4,332,852 · App. 06/099,374
Conditioned colloidal silica post impregnant to prevent binder migration in the production of insulation articles comprising randomly oriented refractory fibers
Inventors:
Harris J. Korklan, John K. Greany
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Dec 3, 1979
Inventors
Harris J. Korklan
John K. Greany
Assignee (at issue)
Kennecott Holdings Company
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.