US2948516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange system with intermediate heat conductive fluids
Assignee: General Electric Co
•
Filing: 1954-12-15
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Granted: 1960-08-09
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Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 Charlotta A Martinelli
- 👤 Daniel R Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:26
CPC Classifications
G; G21; G21C; G21C17/00; G21C17/002; F; F28; F28D; F28D19/00; G21C17/02; G21C17/04; G21D; G21D5/00; G21D5/04; G21D5/08; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |