US4640713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tarnish remover/metal polish formulation comprising a metal iodide, an acid, and water
Assignee: SC Johnson and Son Inc
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Filing: 1984-11-19
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Granted: 1987-02-03
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Expires: 2004-11-19
Abstract
Abstract A tarnish remover/metal polish formulation comprising water, an acid, and metal iodide, such as potassium iodide, is described. The components of the formulation chemically react with the tarnish or stain on a metal surface, removing the tarnish or stain while leaving the metal unaffected. The tarnish remover/metal polish can be applied as a dip-rinse or as a polish. The composition is easily applied and easily removed.
Inventors
- 👤 Robert B. Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:59
CPC Classifications
C; C23; C23F; C23F3/00; C23F3/04; C23F3/06; C23G; C23G1/00; C23G1/02; C23G1/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
57 words
An improved tarnish remover/metal polish formulation comprising: (a) at least one metal iodide in an amount of from about 8 to 25% by weight; (b) an acid in an amount of from about 0.1 to 25% by weight; (c) a surfactant in an amount of from about 0.5 to 3% by weight, and; (d) the balance water.
Claim 2
Dependent Claim
57 words
An improved tarnish remover/metal polish formulation comprising: (a) at least one metal iodide in an amount of from about 8 to 25% by weight; (b) an acid in an amount of from about 0.1 to 25% by weight; (c) a surfactant in an amount of from about 0.5 to 3% by weight, and; (d) the balance water.
Claim 3
Dependent Claim
38 words
The improved tarnish remover/metal polish formulation of claim 1 wherein the metal iodide is a member of the group consisting of potassium iodide, sodium iodide, lithium iodide, magnesium iodide, calcium iodide, rubidium iodide, cesium iodide, and mixtures thereof.
Claim 4
Dependent Claim
16 words
The improved tarnish remover/metal polish formulation of claim 2 wherein the metal iodide is potassium iodide.
Claim 5
Dependent Claim
25 words
The improved silver polish formulation of claim 1 wherein said acid is phosphoric acid which is present at from about 3 to 8% by weight.
Claim 6
Dependent Claim
25 words
The improved silver polish formulation of claim 1 wherein said acid is citric acid which is present at from about 3 to 8% by weight.
Claim 7
Dependent Claim
25 words
The improved silver polish formulation of claim 1 wherein said acid is sulfuric acid which is present at from about 3 to 8% by weight.
Claim 8
Dependent Claim
25 words
The improved silver polish formulation of claim 1 wherein said acid is sulfonic acid which is present at from about 3 to 8% by weight.
Claim 9
Dependent Claim
23 words
The improved tarnish remover/metal polish formulation of claim 1 wherein said potassium iodide is present at from about 8 to 15% by weight.
Claim 10
Dependent Claim
16 words
The metal polish of claim 1 including in addition to said essential ingredients a thickening agent.
Claim 11
Dependent Claim
16 words
The metal polish of claim 1 including in addition to said essential ingredients an organic solvent.
Claim 12
Dependent Claim
52 words
An improved tarnish remover/metal polish formulation suitable as dip rinse comprising: (a) from about 3 to 6% by weight of an acid, (b) from about 8 to 15% by weight of a metal iodide, (c) a surfactant in an amount of about 0.5 to 3% by weight; and (d) the balance water.
Claim 13
Dependent Claim
52 words
An improved tarnish remover/metal polish formulation suitable as dip rinse comprising: (a) from about 3 to 6% by weight of an acid, (b) from about 8 to 15% by weight of a metal iodide, (c) a surfactant in an amount of about 0.5 to 3% by weight; and (d) the balance water.
Claim 14
Dependent Claim
38 words
The improved tarnish remover/metal polish formulation of claim 11 wherein the metal iodide is a member of the group consisting of potassium iodide, sodium iodide, lithium iodide, magnesium iodide, calcium iodide, rubidium iodide, cesium iodide, and mixtures thereof.
Claim 15
Dependent Claim
16 words
The improved tarnish remover/metal polish formulation of claim 12 wherein the metal iodide is potassium iodide.
Claim 16
Dependent Claim
49 words
An improved tarnish remover/metal polish formulation suitable for use as a metal polish comprising from about 3 to 6% by weight of an acid, 8 to 15% by weight of a metal iodide, 4 to 15% of an abrasive, 0.5 to 3% of a surfactant, and the balance water.
Claim 17
Dependent Claim
49 words
An improved tarnish remover/metal polish formulation suitable for use as a metal polish comprising from about 3 to 6% by weight of an acid, 8 to 15% by weight of a metal iodide, 4 to 15% of an abrasive, 0.5 to 3% of a surfactant, and the balance water.
Claim 18
Dependent Claim
38 words
The improved tarnish remover/metal polish formulation of claim 14 wherein the metal iodide is a member of the group consisting of potassium iodide, sodium iodide, lithium iodide, magnesium iodide, calcium iodide, rubidium iodide, cesium iodide, and mixtures thereof.
Claim 19
Dependent Claim
16 words
The improved tarnish remover/metal polish formulation of claim 15 wherein the metal iodide is potassium iodide.
Claim 20
Dependent Claim
15 words
The metal polish of claim 1 including in addition to said essential ingredients an abrasive.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |