Prepacked coffee containing cartridge

Claim 1

A SELF-CONTAINED CARTRIDGE FOR A COFFEE PERCOLATOR INCLUDING A TUBULAR STEM COMPRISING A DOME-SHAPED OUTER RECEPTACLE HAVING AN IMPERFORATE SIDE WALL PORTION, A CENTRAL STEM HAVING AN IMPERFORATE SIDE WALL PORTION, AN OPEN UPPER END AND A FLARED LOWER END, SAID FLARED LOWER END SEATING ON SAID FIRST-MENTIONED STEM, A SLEEVE SURROUNDING SAID SECOND MENTIONED STEM, MEANS CLOSING THE SPACE BETWEEN SAID SECOND MENTIONED STEM AND SAID SLEEVE AT THE UPPER ENDS THEREOF, AN ANNULAR TOP PLATE HAVING OPENINGS THERETHROUGH, SECURED TO SAID SLEEVE AND SLIDINGLY RECEIVED INTERNALLY OF SAID OUTER RECEPTACLE ADJACENT THE TOP THEREOF, AND A BOTTOM PLATE HAVING OPENINGS THERETHROUGH SECURED TO SAID SLEEVE AND SLIDINGLY RECEIVED INTERNALLY OF SAID OUTER RECEPTACLE, SAID TOP AND BOTTOM PLATES, AND THE SIDE WALL PORTIONS OF SAID SLEEVE AND SAID OUTER RECEPTACLE BETWEEN SAID PLATES DEFINING AN ANNULAR COFFEE CONTAINING SPACE, SAID CARTRIDGE BEING REMOVABLY POSITIONED ON THE UPPER SIDE OF SAID LID.