Granted Patent
Utility
US 6,729,267 · App. 10/141,227
Expandable corral for attachment to a horse trailer
Inventor:
Darrell Campbell
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: May 7, 2002
Inventor
Darrell Campbell
Assignee (at issue)
Prairie Ridge Partners
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.