Granted Patent
Utility
US 5,433,776 · App. 08/327,132
Stable blend of ketene dimer size and colloidal silica
Inventor:
Sunil P. Dasgupta
Patented Case
View Patent ↗
Granted: Jul 18, 1995
Filed: Oct 21, 1994
Inventor
Sunil P. Dasgupta
Assignee (at issue)
HERCULES LLC
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.