Granted Patent
Utility
US 6,053,439 · App. 08/908,988
Reducing wax content and enhancing quality of recycled pulp from OCC and waste paper
Inventors:
Ralph E. Locke, Gary N. Prentice, Christopher M. Vitori
Patented Case
View Patent ↗
Granted: Apr 25, 2000
Filed: Aug 8, 1997
Inventors
Ralph E. Locke
Gary N. Prentice
Christopher M. Vitori
Assignees (at issue)
Inland Paperboard and Packaging, Inc.
Thermo Black Clawson Inc.
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.