Granted Patent
Utility
US 4,867,046 · App. 07/213,090
Vent system for storage bins
Inventor:
Dennis G. Yoder
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Jun 29, 1988
Inventor
Dennis G. Yoder
Assignee (at issue)
CTB HOLDINGS LLC
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.