Patent US3294689A successfully refreshed from Google Patents.
US3294689A
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US
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Synergistic sequestering agent
Assignee: Individual
•
Filing: 1963-10-24
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Granted: 1966-12-27
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Expires: 1983-10-24
Abstract
No abstract record available.
Inventors
- 👤 John S Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:00
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/32; C11D7/3218; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/12; C11D7/26; C11D7/265; C25; C25D; C25D3/00; C25D3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2408096A
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US2544649A
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US2674523A
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US2712544A
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US2862880A
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US3000829A
Cited
US3099521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |