Granted Patent
Utility
US 4,948,430 · App. 07/366,597
Ore pellets containing carboxymethylhydroxyethylcellulose and sodium carbonate
Inventors:
Bruce E. Banyai, Denis E. LaSota, Dennis L. Strunk
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Jun 15, 1989
Inventors
Bruce E. Banyai
Denis E. LaSota
Dennis L. Strunk
Assignee (at issue)
Aqualon 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.