US2874536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling means for tailpipe
Assignee: General Electric Co
•
Filing: 1954-03-18
•
Granted: 1959-02-24
•
Expires: 1974-03-18
Abstract
No abstract record available.
Inventors
- 👤 John A Benson
- 👤 Gilbert W Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:23
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/78; F02K1/82; F23; F23R; F23R3/00; F23R3/002; F23R3/42; F23R3/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2268464A
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US2477583A
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US2617255A
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US2631429A
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US2544538A
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US2670601A
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US2651912A
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US2794319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |