US3185649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bleaching compositions
Assignee: Lever Brothers Co
•
Filing: 1961-07-21
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Granted: 1965-05-25
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Expires: 1981-07-21
Abstract
No abstract record available.
Inventors
- 👤 Hampson George Charlesworth
- 👤 Rickatson William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:50
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/39; C11D3/3942; C11D17/00; C11D17/0047; C11D17/0065; C11D17/0073; C11D17/0078; C11D3/3945; C11D3/395; C11D3/3953; C11D3/3955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A BLEACHING AND DETERGENT TABLET CONSISTING ESSENTIALLY OF SODIUM PERBORATE IN AN AMOUNT SUFFICIENT TO PROVIDE FROM 0.5 TO 2% OF AVAILABLE OXYGEN BASED ON THE WEIGHT OF THE TABLET AND SODIUM P-ACETOXY-BENZENE SULFONATE, THE WEIGHT RATIO OF SAID SULFONATE TO THE PERBORATE BEING APPROXIMATELY 1:1 TO 1.5:1 AND THE SULFONATE BEING IN A SECTION OF THE TABLET WHICH IS UNCOATED AND IS SUBSTANTIALLY FREE OF ANY INGREDIENT OF THE TABLET DETRIMENTAL TO THE STABILITY OF THE SULFONATE.
Claim 2
Dependent Claim
78 words
A BLEACHING AND DETERGENT TABLET CONSISTING ESSENTIALLY OF SODIUM PERBORATE IN AN AMOUNT SUFFICIENT TO PROVIDE FROM 0.5 TO 2% OF AVAILABLE OXYGEN BASED ON THE WEIGHT OF THE TABLET AND SODIUM P-ACETOXY-BENZENE SULFONATE, THE WEIGHT RATIO OF SAID SULFONATE TO THE PERBORATE BEING APPROXIMATELY 1:1 TO 1.5:1 AND THE SULFONATE BEING IN A SECTION OF THE TABLET WHICH IS UNCOATED AND IS SUBSTANTIALLY FREE OF ANY INGREDIENT OF THE TABLET DETRIMENTAL TO THE STABILITY OF THE SULFONATE.
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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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |