Patent US2433614A successfully refreshed from Google Patents.
US2433614A
Expired / Lapsed
US
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Nickel catalyst and method of preparing it
Assignee: Airco Inc
•
Filing: 1943-05-11
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Granted: 1947-12-30
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Expires: 1963-05-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Raymond I Longley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:38
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; C; C07; C07C; C07C31/00; C07C31/18; C07C31/20; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 0
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US2333500A
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US2309263A
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US2330098A
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US2365029A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |