US2430416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aromatization of oil produced in low temperature carbonization of coal
Assignee: KETAROME Ltd
•
Filing: 1945-05-03
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Granted: 1947-11-04
•
Expires: 1965-05-03
Abstract
No abstract record available.
Inventors
- 👤 Weizmann Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:53
CPC Classifications
C; C10; C10C; C10C1/00; C10C1/04; C10C1/08; C10G; C10G11/00; C10G11/02
Claims Analysis
Total Claims: 0
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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) | 1950-11-03 | 1951-05-05 | 1951-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-03 | 1955-05-05 | 1955-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-03 | 1959-05-05 | 1959-11-04 | $7700.00 | Window Closed / Lapsed |