US2463693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and retort for the distillation of solid hydrocarbonaceous materials
Assignee: Universal Oil Products Co
•
Filing: 1946-04-20
•
Granted: 1949-03-08
•
Expires: 1966-04-20
Abstract
No abstract record available.
Inventors
- 👤 Lyman C Huff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
C; C10; C10B; C10B7/00; C10B7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR387198A
Cited
US1043213A
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US1298577A
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US1297022A
Cited
US1490213A
Cited
US1604253A
Cited
US1613299A
Cited
GB329441A
Cited
US2080946A
Cited
US2357621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |