Granted Patent
Utility
US 4,242,849 · App. 05/921,658
Skylight construction and method
Inventors:
William D. Benkelman, George C. Carlyon
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Jul 3, 1978
Inventors
William D. Benkelman
George C. Carlyon
Assignee (at issue)
DayCo Holdings, LP
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.