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US3506567A
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Two-stage conversion of nitrogen contaminated feedstocks
Assignee: Standard Oil Co
•
Filing: 1966-08-04
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Granted: 1970-04-14
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Expires: 1986-08-04
Abstract
No abstract record available.
Inventors
- 👤 Bion D Barger Jr
- 👤 Robert J Hengstebeck
- 👤 Thomas M Moore
- 👤 Leonard W Russum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:18
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/12; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3124526A
Cited
US3340179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |