US3639281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Built detergent compositions containing tris(methyl phosphonic acid) phosphine oxide and its salts
Assignee: Monsanto Co
•
Filing: 1970-01-12
•
Granted: 1972-02-01
•
Expires: 1990-01-12
Abstract
Abstract Phosphorus compounds containing the skeleton P-(C-P)2 or P-(CP)3 of the formula P(O)a(R1)b( CH2P(O)(R2R3) 3 b and method for making by reacting a compound of the formula P(O)a(R1)b(CH2Cl)3 b with a compound of the formula P(R)5)(R6)OR4 to split off R4Cl. Also uses of the products as threshold agents, sequestering agents, detergent composition additives, peroxy solution stabilizers and chlorine releasing agent stabilization is claimed.
Inventors
- 👤 Ludwig Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:36
CPC Classifications
C; C07; C07C; C07C71/00; C01; C01B; C01B15/00; C01B15/01; C01B15/037; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/14; C07F; C07F7/00; C07F7/28; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/305; C07F9/32; C07F9/3205; C07F9/3235; C07F9/38; C07F9/3804; C07F9/3808; C07F9/3821; C07F9/40; C07F9/4003; C07F9/4006; C07F9/4012; C07F9/50; C07F9/5004; C07F9/5009; C07F9/53; C07F9/5304; C07F9/5308; C07F9/5312; C07F9/5329; C09; C09K; C09K15/00; C09K15/04; C09K15/32; C09K15/322; C11; C11D; C11D1/00; C11D1/02; C11D1/34; C11D3/00; C11D3/16; C11D3/36; C11D3/39; C11D3/3902; C11D3/3937; C11D3/394; C11D3/395; C11D3/3951
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3422021A
Cited
US3471552A
Cited
US3471406A
Cited
US3400148A
Cited
US3499842A
Cited
US3534125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |