Granted Patent
Utility
US 6,294,645 · App. 08/900,805
Dry-strength system
Inventors:
Anthony J. Allen, Elliott Echt, William W. Maslanka, Jeffrey C. Peters
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Jul 25, 1997
Inventors
Anthony J. Allen
Elliott Echt
William W. Maslanka
Jeffrey C. Peters
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.