Patent US2930592A successfully refreshed from Google Patents.
US2930592A
Expired / Lapsed
US
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Heat exchangers
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1958-06-24
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Granted: 1960-03-29
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Expires: 1978-06-24
Abstract
No abstract record available.
Inventors
- 👤 Long Everett
- 👤 Symes Reginald John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:16
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/005; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/063; Y10S165/065; Y10S165/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US896805A
Cited
US2849386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |