US2459480A
Expired / Lapsed
US
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Method of conditioning a catalyst for use in hydroforming of naphthas
Assignee: Standard Oil Development Co
•
Filing: 1945-08-11
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Granted: 1949-01-18
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Expires: 1965-08-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert B Welty
- 👤 Clinton H Holder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:23
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; Y; Y10; Y10S; Y10S252/00; Y10S252/18; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2273864A
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US2270715A
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US2290845A
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US2322863A
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US2339107A
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US2317494A
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US2338881A
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US2344330A
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US2392738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |