Granted Patent
Utility
US 6,693,068 · App. 09/806,528
Alkaline carpet cleaning composition comprising a pyrrolidone-based solvent
Inventors:
Tracy Ann Ryan, Candice Lida Taylor, Frederic Albert Taraschi
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: May 9, 2001
Inventors
Tracy Ann Ryan
Candice Lida Taylor
Frederic Albert Taraschi
Assignee (at issue)
Reckitt Benckiser LLC
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.