Granted Patent
Utility
US 5,236,281 · App. 07/914,713
Dikes for damming or diverting liquids
Inventor:
Dennis G. Middleton
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Jul 15, 1992
Inventor
Dennis G. Middleton
Assignee (at issue)
New Pig Corporation
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.