Granted Patent
Utility
US 6,503,547 · App. 09/443,646
Method for diffusing ozone in a closed environment
Inventor:
Carles Lima
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Nov 18, 1999
Inventor
Carles Lima
Assignee (at issue)
Grupo Interozone
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.