US3725019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating of reactive form coke by catalytic deposition of glanz carbon
Assignee: FMC Corp
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Filing: 1971-04-19
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Granted: 1973-04-03
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Expires: 1991-04-19
Abstract
Abstract FORM COKE, COATED WITH A UNIFORM FILM OF GLANZ CARBON, ISDESCRIBED, TOGETHER WITH MEHTODS FOR PRODUCING THE FILM DURING THE PRODUCTION OF THE COKE BY THE CATALYTIC ACTION OF TRANSITION METALS, ESPECIALLY TIN AND ZINC.
Inventors
- 👤 A Zanpirri
- 👤 J Trechock
- 👤 R Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:58
CPC Classifications
C; C10; C10L; C10L9/00; C10L9/10; C10B; C10B53/00; C10B53/08; Y; Y10; Y10S; Y10S44/00; Y10S44/905
Claims Analysis
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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 |