Granted Patent
Utility
US 6,308,472 · App. 09/480,385
Adjustable roof ridge vent
Inventors:
Michael S. Coulton, Kenneth L. Laubsch
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Jan 10, 2000
Inventors
Michael S. Coulton
Kenneth L. Laubsch
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.