US2440109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of effecting catalytic reactions
Assignee: Texaco Inc
•
Filing: 1945-02-06
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Granted: 1948-04-20
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Expires: 1965-02-06
Abstract
No abstract record available.
Inventors
- 👤 Frank J Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:28
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/20; B01J8/22; B01J8/224; B01J8/228; B01J8/005; C; C10; C10G; C10G2/00; C10G2/30; C10G2/32; C10G2/34; C10G2/342; C10G2/343; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1380067A
Cited
US2161974A
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US2250421A
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US2287092A
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US2318602A
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US2296696A
Cited
US2353098A
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US2389739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |