Granted Patent
Utility
US 6,601,651 · App. 09/776,556
Downhole gas compression
Inventor:
Angus Grant
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Feb 2, 2001
Inventor
Angus Grant
Assignee (at issue)
Weir Pumps Limited
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.