Granted Patent
Utility
US 6,309,289 · App. 09/586,674
Air flotation and locking material handling apparatus and method of use
Inventors:
Ben A. Dugger, Thomas Jenkins
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Jun 1, 2000
Inventors
Ben A. Dugger
Thomas Jenkins
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.