Granted Patent
Utility
US 4,801,643 · App. 07/032,280
Small particle size non-surface active protective colloid-stabilized latexes derived from monomers of high aqueous phase grafting tendencies
Inventor:
Daniel H. Craig
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Mar 30, 1987
Inventor
Daniel H. Craig
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.