US2450316A
Expired / Lapsed
US
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Preparation of catalyst for use in destructive hydrogenation of hydrocarbon oils
Assignee: Standard Oil Development Co
•
Filing: 1945-04-25
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Granted: 1948-09-28
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Expires: 1965-04-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Alexis Voorhies
- 👤 William E Spicer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:21
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16; B01J23/00; B01J23/70; B01J23/74; B01J23/755; B01J27/00; B01J27/02; B01J27/04; C; C10; C10G; C10G47/00; C10G47/02; C10G47/06; C10G47/10; C10G47/12; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2141185A
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US2222400A
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US2296406A
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US2280258A
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US2335717A
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US2333500A
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US2358879A
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US2398899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-28 | 1952-03-29 | 1952-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-28 | 1956-03-29 | 1956-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-28 | 1960-03-29 | 1960-09-28 | $7700.00 | Window Closed / Lapsed |