Granted Patent
Utility
US 5,955,372 · App. 09/060,513
Detection of concrete deterioration by staining
Inventors:
George D. Guthrie, Jr., J. William Carey
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Apr 14, 1998
Inventors
George D. Guthrie, Jr.
J. William Carey
Assignee (at issue)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
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.