Granted Patent
Utility
US 5,652,023 · App. 08/609,087
Fixation process for heat-fixable preservative treated wood
Inventors:
Anthony John Bergervoet, James L. Marcinko, Paul Walcheski
Patented Case
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Granted: Jul 29, 1997
Filed: Feb 29, 1996
Inventors
Anthony John Bergervoet
James L. Marcinko
Paul Walcheski
Assignee (at issue)
Chemical Specialties
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.