US3464634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of clay
Assignee: Imerys Minerals Ltd
•
Filing: 1968-02-27
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Granted: 1969-09-02
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Expires: 1988-02-27
Abstract
No abstract record available.
Inventors
- 👤 Ronald Eric Brociner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:50
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/40; C09C1/42; A; A01; A01N; A01N37/00; A01N37/42; C05; C05F; C05F11/00; C05F11/10; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C01P2006/00; C01P2006/22; C01P2006/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR734045A
Cited
US2158987A
Cited
US2904267A
Cited
US3097801A
Cited
US3253791A
Cited
US3414422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |