Patent US3725103A successfully refreshed from Google Patents.
US3725103A
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US
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Carbon black pigments
Assignee: Cabot Corp
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Filing: 1971-03-10
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Granted: 1973-04-03
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Expires: 1991-03-10
Abstract
Abstract A FAMILY OF NEW AND NOVEL CARBON BLACK PRODUCTS HAVING UNUSUALLY HIGH TINT WHICH ARE SUITABLE FOR USE IN THE PREPARATION OF REINFORCED RUBBER SYSTEMS.
Inventors
- 👤 M Jordan
- 👤 W Burbine
- 👤 F Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:10
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C01; C01P; C01P2006/00; C01P2006/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |