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US2456672A
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Conversion of hydrocarbons
Assignee: Universal Oil Products Co
•
Filing: 1945-03-31
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Granted: 1948-12-21
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Expires: 1965-03-31
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
- 👤 Raymond E Schaad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:50
CPC Classifications
C; C07; C07C; C07C15/00; C07C9/00; C07C9/14; C07C9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2183591A
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US2181640A
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US2226562A
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US2199133A
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US2172560A
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US2291581A
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US2309986A
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US2349160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |