Patent US2450764A successfully refreshed from Google Patents.
US2450764A
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Isomerization of hydrocarbons and improved catalysts therefor
Assignee: Phillips Petroleum Co
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Filing: 1944-01-01
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Granted: 1948-10-05
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Expires: 1964-01-01
Abstract
No abstract record available.
Inventors
- 👤 Charles O Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:48
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/60; C07C2521/00; C07C2521/18; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/10; C07C2527/11; C07C2527/125; C07C2527/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2100352A
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US2169494A
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US2344467A
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US2346768A
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US2351354A
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US2277022A
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US2324746A
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US2309263A
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US2354851A
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US2342922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-05 | 1952-04-05 | 1952-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-05 | 1956-04-05 | 1956-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-05 | 1960-04-05 | 1960-10-05 | $7700.00 | Window Closed / Lapsed |