US 6,412,628 C1 (7024th)
	APPARATUS FOR PREVENTING THE FORMATION OF METAL TARNISH
Walter George Tramposch, Moon Township, Pa., assignor to Calgon Carbon Corporation, Pittsburgh, Pa.
Reexamination Request Nos. 90/006,411, Oct. 11, 2002 and 90/006,881, Dec. 5, 2003.
Reexamination Certificate for Patent 6,412,628, issued Jul. 2, 2002, Appl. No. 532,476, Mar. 22, 2000.
Int. Cl. B65D 81/24 (2006.01)

U.S. Cl. 206—207

AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:

Claims 1-10 are cancelled.

New claims 11 and 12 are added and determined to be patentable.

11. An apparatus for substantially preventing tarnish from forming on a metal object, said apparatus comprising an enclosure having a closeable opening for substantially sealing within said metal object, said enclosure having at least one adsorbent attached or removably attached therein, wherein said adsorbent is disposed between porous protective layers of fabric or cloth and substantially surrounds said metal object within said enclosure, and wherein at least one of said adsorbent is selected from the group consisting of activated carbon, natural and synthetic zeolite, silica gel, activated alumina and mixtures thereof, wherein at least one of said adsorbent is impregnated with one or more halides of metal selected from the group consisting of zinc, aluminum, magnesium, calcium, iron and ammonium, or phosphoric acid.