Granted Patent
Utility
US 5,456,800 · App. 08/094,273
System for sizing paper and cardboard
Inventors:
Anthony C. Tansley, John D. Ballantine
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Jul 19, 1993
Inventors
Anthony C. Tansley
John D. Ballantine
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.