Patent US2495273A successfully refreshed from Google Patents.
US2495273A
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US
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Method for making sound metal castings
Assignee: Individual
•
Filing: 1946-07-25
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Granted: 1950-01-24
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Expires: 1966-07-25
Abstract
No abstract record available.
Inventors
- 👤 Carlton G Lutts
- 👤 John P Hickey
- 👤 Bock Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:57
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US733957A
Cited
US1053738A
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US1122272A
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US1294209A
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US1596888A
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US2250009A
Cited
US2294169A
Cited
US2337314A
Cited
US2426849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |