Patent US3061940A successfully refreshed from Google Patents.
US3061940A
Expired / Lapsed
US
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Method and apparatus for heat transfer
Assignee: EIDP Inc
•
Filing: 1958-08-22
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Granted: 1962-11-06
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Expires: 1978-08-22
Abstract
No abstract record available.
Inventors
- 👤 Mario T Cichelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:04
CPC Classifications
D; D21; D21F; D21F5/00; D21F5/004; B; B65; B65H; B65H2406/00; B65H2406/10; B65H2406/11; B65H2406/113; B65H2406/1131; Y; Y10; Y10S; Y10S165/00; Y10S165/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1560589A
Cited
US1838943A
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US2081945A
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US2085842A
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US2211490A
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US2192898A
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US2281496A
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US2387886A
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US2389586A
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US2519375A
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US2645031A
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US2689196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |