Granted Patent
Utility
US 4,907,294 · App. 07/187,272
Log scanning system
Inventors:
William E. Bolton, Jeffrey D. Ballance, Dale E. Campbell
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Apr 28, 1988
Inventors
William E. Bolton
Jeffrey D. Ballance
Dale E. Campbell
Assignee (at issue)
U.S. Natural Resources, 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.