Granted Patent
Utility
US 6,256,955 · App. 09/532,185
Apparatus and method for debris-collecting in masonry cavity walls
Inventors:
Richard A. Lolley, James R. Keene, Curtis McCorsley
Patented Case
View Patent ↗
Granted: Jul 10, 2001
Filed: Mar 20, 2000
Inventors
Richard A. Lolley
James R. Keene
Curtis McCorsley
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.