Granted Patent
Utility
US 5,814,120 · App. 08/562,738
Sweepout assembly with nonmetallic pads
Inventors:
Patrick H. Lloyd, Kyle Nelson
Patented Case
View Patent ↗
Granted: Sep 29, 1998
Filed: Nov 27, 1995
Inventors
Patrick H. Lloyd
Kyle Nelson
Assignee (at issue)
Union Oil Company of California
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.