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Patent US3049768A successfully refreshed from Google Patents.
US3049768A
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US
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Apparatus and process for casting pistons
Assignee: Motors Liquidation Co
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Filing: 1959-04-30
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Granted: 1962-08-21
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Expires: 1979-04-30
Abstract
No abstract record available.
Inventors
- 👤 Edgar R Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:58
CPC Classifications
B; B22; B22D; B22D15/00; B22D15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1663693A
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US1078446A
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US1645726A
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US1722414A
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US2070649A
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US2015975A
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US2527537A
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US2579952A
Cited
US2711568A
Cited
GB782646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |