US3772204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of scouring cleanser
Assignee: Colgate Palmolive Co
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Filing: 1971-08-13
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Granted: 1973-11-13
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Expires: 1991-08-13
Abstract
Abstract SCOURING CLEANERS ARE MADE BY NEUTRALIZATION OF A DETERGENT ACID WITH AN EXCESS OF CALCIUM CARBONATE, WHEREBY A CALCIUM-DETERGENT SALT IS PRODUCED TOGETHER WITH CALCIUM CARBONATE SCOURING MATERIAL. SUCH CLEANERS HAVE IMPROVED FOAMING POWER AND BLEACHES PRESENT IN THEM ARE MORE STABLE ON STORAGE THAN IN SIMILAR PRODUCTS CONTAINING A CORRESPONDING SODIUM-DTERGENT SALT.
Inventors
- 👤 R Insignares
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:54
CPC Classifications
C; C11; C11D; C11D11/00; C11D11/04; C11D3/00; C11D3/02; C11D3/12; C11D3/1233; C11D3/395; C11D3/3958
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |