Granted Patent
Utility
US 6,213,409 · App. 09/252,016
Time release fragrance sachet, method of using same and method of fabricating same
Inventors:
Craig B. Warren, John Ramsbotham, Marcel Belt
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Feb 18, 1999
Inventors
Craig B. Warren
John Ramsbotham
Marcel Belt
Assignees (at issue)
International Flavors & Fragrances Inc.
Unilever Patent Holdings B.V.
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.