Granted Patent
Utility
US 6,488,187 · App. 09/741,253
Sifter dispensing cap and base
Inventors:
Robert J. Sheffler, Thomas J. Dolan, Timothy Callahan
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Dec 21, 2000
Inventors
Robert J. Sheffler
Thomas J. Dolan
Timothy Callahan
Assignee (at issue)
Brent River Packaging Corporation
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.