Granted Patent
Utility
US 6,641,909 · App. 10/031,791
Hemp hurd composite panels and method of making
Inventor:
Wayne Wasylciw
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Jun 11, 2002
Inventor
Wayne Wasylciw
Assignee (at issue)
Alberta Research Council 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.