Granted Patent
Utility
US 5,342,899 · App. 07/701,232
Process for recycling aqueous fluid absorbents fines to a polymerizer
Inventors:
Andrew T. Graham, Herbert Gartner
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: May 16, 1991
Inventors
Andrew T. Graham
Herbert Gartner
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.