US2565855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural station quenching device for elongated objects
Assignee: Selas Corp of America
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Filing: 1947-11-19
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Granted: 1951-08-28
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Expires: 1967-11-19
Abstract
No abstract record available.
Inventors
- 👤 John W Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:46
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/62; B; B21; B21B; B21B45/00; B21B45/02; B21B45/0203; B21B45/0209; B21B45/0215; B21B45/0224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2307694A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |