Granted Patent
Utility
US 4,658,490 · App. 06/767,787
Siding installation tool
Inventors:
Daniel J. Czelusniak, Robert John Cooke, Donald Groleau
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Aug 20, 1985
Inventors
Daniel J. Czelusniak
Robert John Cooke
Donald Groleau
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.