US2623531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray cooling device
Assignee: Huntington Alloys Corp
•
Filing: 1948-10-02
•
Granted: 1952-12-30
•
Expires: 1968-10-02
Abstract
No abstract record available.
Inventors
- 👤 Waddington Ralph Henry
- 👤 Geigel Kenwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:15
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/124; B22D11/1246
Claims Analysis
Total Claims: 0
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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) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |