Granted Patent
Utility
US 6,132,620 · App. 09/110,934
Method and apparatus for separating oil and water
Inventors:
Larry Robinson, William J. Kennedy
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jul 6, 1998
Inventors
Larry Robinson
William J. Kennedy
Assignees (at issue)
Larry P. Robinson
Charlene B. Robinson
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.