US2552810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of locating inserts in castings
Assignee: Alcoa Corp
•
Filing: 1948-05-26
•
Granted: 1951-05-15
•
Expires: 1968-05-26
Abstract
No abstract record available.
Inventors
- 👤 Clayton A O'neill
- 👤 Wesley W Harris
- 👤 Guyot Marius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:17
CPC Classifications
B; B22; B22D; B22D19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US8658A
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US937793A
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US951753A
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US977345A
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US1630922A
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FR600745A
Cited
US2101591A
Cited
US2265243A
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US2408149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |