Granted Patent
Utility
US 4,582,695 · App. 06/652,027
Process for producing carbon black
Inventors:
Meredith N. Dilbert, Glenn J. Forseth, William R. Jones, Richard T. Divis
Patented Case
View Patent ↗
Granted: Apr 15, 1986
Filed: Sep 19, 1984
Inventors
Meredith N. Dilbert
Glenn J. Forseth
William R. Jones
Richard T. Divis
Assignee (at issue)
Phillips Petroleum 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.