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US2455445A
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Gel catalyst
Assignee: Standard Oil Co
•
Filing: 1944-07-22
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Granted: 1948-12-07
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Expires: 1964-07-22
Abstract
No abstract record available.
Inventors
- 👤 Melvin J See
- 👤 James C Bailie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:42
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/12; B01J13/00; B01J13/0052; B01J13/0069; B01J2/00; B01J2/02; B01J2/06; B01J2/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1755496A
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US1835420A
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US2085129A
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US2093454A
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US2138048A
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US2232727A
Cited
US2302297A
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US2289918A
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US2284248A
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US2384943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-07 | 1952-06-07 | 1952-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-07 | 1956-06-07 | 1956-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-07 | 1960-06-07 | 1960-12-07 | $7700.00 | Window Closed / Lapsed |