US3351079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low fluid loss compositions
Assignee: Dow Chemical Co
•
Filing: 1962-09-28
•
Granted: 1967-11-07
•
Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 Daniel L Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:14
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/64; C09K3/00; C09K8/02; C09K8/32; F; F17; F17D; F17D1/00; F17D1/08; F17D1/16; Y; Y10; Y10S; Y10S507/00; Y10S507/922; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2492173A
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US2596843A
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GB710109A
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GB728220A
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US2691647A
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US2825721A
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US2779735A
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US2946748A
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US3046222A
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US3083160A
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US3105047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |