Granted Patent
Utility
US 4,942,699 · App. 07/423,524
Venting of roofs
Inventor:
Larry Spinelli
Patented Case
View Patent ↗
Granted: Jul 24, 1990
Filed: Oct 13, 1989
Inventor
Larry Spinelli
Assignee (at issue)
BENJAMIN OBDYKE INCORPORATED
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.