Granted Patent
Utility
US 5,994,449 · App. 08/788,731
Resin compositions for making wet and dry strength paper and their use as creping adhesives
Inventor:
William W. Maslanka
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Jan 23, 1997
Inventor
William W. Maslanka
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.