Granted Patent
Utility
US 6,040,057 · App. 08/843,160
Enhancing the strength, moisture resistance, and fire-resistance of wood, timber, lumber, similar plant-derived construction and building materials, and other cellulosic materials
Inventors:
Robert A. Slimak, Christian C. Haudenschild, Karen M. Slimak
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Apr 11, 1997
Inventors
Robert A. Slimak
Christian C. Haudenschild
Karen M. Slimak
Assignee (at issue)
Karen M. Slimak
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.