US3056587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of effecting a high rate of heat transfer from a heated surface to a liquid
Assignee: Individual
•
Filing: 1957-02-26
•
Granted: 1962-10-02
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Expires: 1977-02-26
Abstract
No abstract record available.
Inventors
- 👤 Steigerwald Karl Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:41
CPC Classifications
F; F28; F28F; F28F13/00; F28F13/16; B; B22; B22D; B22D11/00; B22D11/04; B22D11/055; B22D11/12; B22D11/124; B22D11/1246; C; C21; C21D; C21D1/00; C21D1/04; F22; F22B; F22B1/00; F22B1/28; F22B1/281; F22B37/00; F22B37/02; F22D; F22D1/00; F22D1/006; F22D1/02; F22D1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308040A
Cited
US1827714A
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US1835557A
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US2605377A
Cited
US2664394A
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US2730597A
Cited
US2772540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |