Patent US3128250A successfully refreshed from Google Patents.
US3128250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion and china pattern fading inhibitor
Assignee: Calgon Corp
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Filing: 1959-07-01
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Granted: 1964-04-07
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Expires: 1979-07-01
Abstract
No abstract record available.
Inventors
- 👤 Anthony E Lintner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:01
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/3958; C11D3/16; C11D3/20; C11D3/2075; C11D3/2079
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A MECHANICAL DISHWASHING COMPOSITION INHIBITED AGAINST THE TENDENCY TO CAUSE CHINA PATTERN FADING CONSISTING ESSENTIALLY OF, BY WEIGHT, ABOUT 137 PARTS SODIUM TRIPOLYPHOSPHATE ANHYDROUS, ABOUT 54 PARTS SODIUM METASILICATE ANYHDROUS, 7 1/2 PARTS DICHLORCYANURIC ACID, AND ONE PART ALUMINUM ACETATE BASIC.
Claim 2
Dependent Claim
41 words
A MECHANICAL DISHWASHING COMPOSITION INHIBITED AGAINST THE TENDENCY TO CAUSE CHINA PATTERN FADING CONSISTING ESSENTIALLY OF, BY WEIGHT, ABOUT 137 PARTS SODIUM TRIPOLYPHOSPHATE ANHYDROUS, ABOUT 54 PARTS SODIUM METASILICATE ANYHDROUS, 7 1/2 PARTS DICHLORCYANURIC ACID, AND ONE PART ALUMINUM ACETATE BASIC.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |