Granted Patent
Utility
US 6,033,468 · App. 08/790,958
Interground white blended cement
Inventors:
Timothy S. Folks, Patrick M. Hill, Frank T. Sheets, III, Richard F. Ball, Joseph R. Sisneros, Jesus Uribe, Curtis W. Forrester
Patented Case
View Patent ↗
Granted: Mar 7, 2000
Filed: Jan 29, 1997
Inventors
Timothy S. Folks
Patrick M. Hill
Frank T. Sheets, III
Richard F. Ball
Joseph R. Sisneros
Jesus Uribe
Curtis W. Forrester
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.