Patent US3276669A successfully refreshed from Google Patents.
US2634468A
Expired / Lapsed
US
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Apparatus for pressure casting
Assignee: Individual
•
Filing: 1948-10-16
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Granted: 1953-04-14
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Expires: 1968-10-16
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Holder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:44
CPC Classifications
F; F15; F15B; F15B3/00; B; B22; B22D; B22D17/00; B22D17/20; B22D17/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1781168A
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US1940063A
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US2112342A
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US2145956A
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US2214308A
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US2182059A
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US2210544A
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US2181157A
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US2365282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |