Patent US2574663A successfully refreshed from Google Patents.
US2574663A
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Assignee: Motors Liquidation Co
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Filing: 1948-08-21
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Granted: 1951-11-13
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Expires: 1968-08-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:52
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/22; F25C1/24; F25C1/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |