US2963779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making heat exchange structures
Assignee: General Electric Co
•
Filing: 1958-06-30
•
Granted: 1960-12-13
•
Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Mosgard-Jensen Jens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:26
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/06; F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/124; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA494917A
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GB112666A
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US1367881A
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US1516430A
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GB331392A
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US2234432A
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US2553142A
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US2559272A
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US2594232A
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US2692119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |