Granted Patent
Utility
US 5,919,296 · App. 09/050,389
Storage-stable water-repellent composition for masonry materials
Inventors:
Anh Be, Donald T. Liles, Francisco Gerardo Palencia Wilhelmi
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Mar 30, 1998
Inventors
Anh Be
Donald T. Liles
Francisco Gerardo Palencia Wilhelmi
Assignee (at issue)
Dow Corning Corporation
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.