Granted Patent
Utility
US 6,358,310 · App. 09/881,161
Air entraining admixture compositions
Inventors:
Neal S. Berke, Maria C. Hicks, James J. Malone
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Jun 14, 2001
Inventors
Neal S. Berke
Maria C. Hicks
James J. Malone
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.