US3471406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions containing methane tri and tetra phosphonic acid compounds
Assignee: Plains Chemical Development Co
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Filing: 1965-09-07
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Granted: 1969-10-07
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Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 Edward G Budnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:04
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/36; C11D3/361; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3839; C11D3/367
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2765279A
Cited
FR1071758A
Cited
US2848475A
Cited
US3149151A
Cited
US3159581A
Cited
US3256370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |