Granted Patent
Utility
US 5,994,440 · App. 08/501,104
Absorbent polymer having reduced dusting tendencies
Inventors:
Thomas L. Staples, Warren L. Treptow, Stewart P. Wood
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Oct 31, 1995
Inventors
Thomas L. Staples
Warren L. Treptow
Stewart P. Wood
Assignee (at issue)
THE DOW CHEMICAL COMPANY
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.