US3562166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Built detergent compositions
Assignee: Procter and Gamble Co
•
Filing: 1968-12-24
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Granted: 1971-02-09
•
Expires: 1988-12-24
Abstract
Abstract BUILT DETERGENT COMPOSITIONS CONTAINING AN ORGANIC SYNTHETIC DETERGENT AND A BUILDER WHICH IS ETHANE-1,2-DICARBOXY-1,2-DIPHOSPHONIC ACID, ETHANE-1,2-DICARBOXY, 1,2-DIHYDROXY -1,2-DIPHOSPHONIC ACID, ETHENE-1,2-DICARBOXY-1PHOSPHONIC ACID, AND DIALKYL (P,P'') ETHANE-1,2-DICARBOXY1,2-DIPHOSPHONIC ACID OR ALKALI METAL OR AMMONIUM SALTS THEREOF IN A PROPORTION OF DETERGENT TO BUILDER OF 5:1 TO ABOUT 1:20.
Inventors
- 👤 Denzel Allan Nicholson
- 👤 Darrel Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:24
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/36; C11D3/365
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |