Granted Patent
Utility
US 5,676,839 · App. 08/701,086
Floatable oil and debris collection device
Inventor:
Ronald D. Shippert
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Aug 21, 1996
Inventor
Ronald D. Shippert
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.