Granted Patent
Utility
US 6,730,165 · App. 10/113,740
Polymer impregnation process
Inventors:
Clair J. Emery, Charles Martin Shields
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Apr 1, 2002
Inventors
Clair J. Emery
Charles Martin Shields
Assignee (at issue)
Tembec USA LLC
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.