Granted Patent
Utility
US 6,811,022 · App. 10/288,143
Log transport system
Inventors:
David E. Seffens, Michael C. Ballard, David R. Shald, David C. Seffens, Jeffery T. Ramsey
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Nov 5, 2002
Inventors
David E. Seffens
Michael C. Ballard
David R. Shald
David C. Seffens
Jeffery T. Ramsey
Assignee (at issue)
Advanced Sawmill Machinery, 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.