Granted Patent
Utility
US 5,505,987 · App. 08/376,890
Processes for improving the bond between hydrating cement-based materials and existing cement-based substrates
Inventors:
Hamlin M. Jennings, Anthony Kelzenberg, Simon K. Hodson
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Jan 20, 1995
Inventors
Hamlin M. Jennings
Anthony Kelzenberg
Simon K. Hodson
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.