Granted Patent
Utility
US 6,800,129 · App. 10/354,809
High solids pumpable cement additives
Inventors:
Leslie A. Jardine, David F. Myers, Anandakumar Ranganathan
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Jan 30, 2003
Inventors
Leslie A. Jardine
David F. Myers
Anandakumar Ranganathan
Assignee (at issue)
W.R. Grace & Co. Conn.
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.