Granted Patent
Utility
US 6,800,124 · App. 10/178,192
Ethylene oxide sterilization process indicator inks
Inventor:
Shobha Shakher Puntambekar
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Jun 24, 2002
Inventor
Shobha Shakher Puntambekar
Assignee (at issue)
ILLINOIS TOOL WORKS INC.
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.