Granted Patent
Utility
US 5,476,142 · App. 08/364,091
Flexible contaminant-resistant grout composition and method
Inventor:
Laura Kajita
Patented Case
View Patent ↗
Granted: Dec 19, 1995
Filed: Dec 27, 1994
Inventor
Laura Kajita
Assignee (at issue)
American Colloid Company
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.