Granted Patent
Utility
US 6,821,941 · App. 10/293,082
Tablet of compacted particulated cleaning composition
Inventors:
Bala Srinivas, Purvita Shah
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Nov 13, 2002
Inventors
Bala Srinivas
Purvita Shah
Assignee (at issue)
ISP INVESTMENTS 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.