Granted Patent
Utility
US 6,090,875 · App. 08/602,408
Dust control of absorbent polymers
Inventors:
Thomas L. Staples, Jerry D. DeVrieze
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Feb 16, 1996
Inventors
Thomas L. Staples
Jerry D. DeVrieze
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.