Granted Patent
Utility
US 5,920,849 · App. 08/786,917
Systems and methods for evaluating building materials
Inventors:
W. Curtis Broughton, Randal S. Hosler
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Jan 22, 1997
Inventors
W. Curtis Broughton
Randal S. Hosler
Assignee (at issue)
QuickPen International, 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.