US2637882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum die-casting
Assignee: United States Atomic Energy Commission
•
Filing: 1944-02-17
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Granted: 1953-05-12
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Expires: 1964-02-17
Abstract
No abstract record available.
Inventors
- 👤 Robert F Plott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:37
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/06; B22C; B22C9/00; B22C9/06; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10S425/00; Y10S425/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |