Granted Patent
Utility
US 6,311,770 · App. 09/505,032
Pitless adapter assembly
Inventor:
Jerry D. Mullis
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Feb 16, 2000
Inventor
Jerry D. Mullis
Assignee (at issue)
Conbraco Industries, Inc.
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.