Patent US3330766A successfully refreshed from Google Patents.
US3330766A
Expired / Lapsed
US
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Discoloration inhibitors
Assignee: Lever Brothers Co
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Filing: 1965-10-20
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Granted: 1967-07-11
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Goldwasser Seymore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:35
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D3/06; C11D3/39; C11D3/3942; C11D3/395; C11D3/3955; C11D3/3958
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
35 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A SYNTHETIC NON-SOAP DETERGENT, AN ALKALI METAL PYROPHOSPHATE SALT, AN EFFECTIVE AMOUNT OF A MANAGANESE STAIN INHIBITING WATER SOLUBLE CERIUM COMPOUND AND A BLEACHING AGENT CAPABLE OF OXIDIZING MANGANESE.
References Cited (Backward Citations)
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US2802786A
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US2895050A
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US3049495A
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US3112274A
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US3079347A
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US3100683A
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |