US2474583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control means
Assignee: Standard Oil Development Co
•
Filing: 1946-01-19
•
Granted: 1949-06-28
•
Expires: 1966-01-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Warren K Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:25
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0455; C07C1/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2146667A
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US2161974A
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GB505121A
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US2331343A
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US2402875A
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US2406851A
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US2354355A
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US2394710A
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US2411760A
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US2393909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |