Granted Patent
Utility
US 5,775,424 · App. 08/676,427
Depth-discrete sampling port
Inventors:
Bradley E. Pemberton, Christopher P. May, Joseph Rossabi, Brian D. Riha, Ralph L. Nichols
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: Jul 8, 1996
Inventors
Bradley E. Pemberton
Christopher P. May
Joseph Rossabi
Brian D. Riha
Ralph L. Nichols
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.