Patent US3039265A successfully refreshed from Google Patents.
US3039265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger construction for gas turbines
Assignee: Williams International Corp
•
Filing: 1956-12-12
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Granted: 1962-06-19
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Expires: 1976-12-12
Abstract
No abstract record available.
Inventors
- 👤 Sam B Williams
- 👤 Jack J Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:01
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/08; F02C7/10; F02C7/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB620602A
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US2503651A
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GB649265A
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US2605646A
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GB666889A
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US2678194A
Cited
US2760791A
Cited
US2705615A
Cited
US2738958A
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GB710959A
Cited
US2795928A
Cited
US2880972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |