US3444047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making metallurgical coke
Assignee: THOMAS J WILDE
•
Filing: 1968-03-04
•
Granted: 1969-05-13
•
Expires: 1988-03-04
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Wilde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:55
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/0066; C10; C10B; C10B53/00; C10B53/08; C21C; C21C1/00; F; F27; F27B; F27B1/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |