Granted Patent
Utility
US 6,740,155 · App. 10/228,009
Method of delaying the set time of cement and the compositions produced therefrom
Inventors:
Bruce Boggs, Douglas S. Rhodes
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Aug 26, 2002
Inventors
Bruce Boggs
Douglas S. Rhodes
Assignee (at issue)
ISG Resources, 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.