Granted Patent
Utility
US 5,648,231 · App. 08/385,399
Measurement of mold growth on amorphous substrates
Inventor:
Bruce D. King
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Feb 7, 1995
Inventor
Bruce D. King
Assignee (at issue)
Ducoa, L.P.
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.