US2548026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for pyrolytic conversion of hydrocarbons
Assignee: Sinclair Refining Co
•
Filing: 1947-06-27
•
Granted: 1951-04-10
•
Expires: 1967-06-27
Abstract
No abstract record available.
Inventors
- 👤 Kaasa Orin Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:01
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2337684A
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US2401739A
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US2378542A
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US2391944A
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GB574064A
Cited
US2439582A
Cited
US2415755A
Cited
US2436464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |