Granted Patent
Utility
US 6,827,147 · App. 10/162,803
Reciprocating lubricator
Inventor:
L. Murray Dallas
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Jun 3, 2002
Inventor
L. Murray Dallas
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.