Patent US2500556A successfully refreshed from Google Patents.
US2500556A
Expired / Lapsed
US
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Method of casting
Assignee: BUDDS AERO CASTINGS Inc
•
Filing: 1946-04-24
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Granted: 1950-03-14
•
Expires: 1966-04-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Mallach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:13
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US67227A
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US70486A
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US1347728A
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US1243714A
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US1387864A
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US1699120A
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FR643691A
Cited
US2061765A
Cited
US2181157A
Cited
US2356338A
Cited
US2391182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |