Granted Patent
Utility
US 4,995,591 · App. 07/399,419
Retaining lock for chain link fence slats
Inventors:
William D. Humphrey, Harold A. Rothenberger
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Aug 25, 1989
Inventors
William D. Humphrey
Harold A. Rothenberger
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.