Patent DE957897C successfully refreshed from Google Patents.
US2604577A
Expired / Lapsed
US
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Heating and work handling apparatus
Assignee: Ohio Crankshaft Co
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Filing: 1947-12-06
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Granted: 1952-07-22
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Expires: 1967-12-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold A Strickland
- 👤 Donald W Riddell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:10
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US267633A
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US634499A
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US1748465A
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GB264110A
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US1936840A
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US2325638A
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US2421920A
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US2504198A
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US2440316A
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US2465306A
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US2506425A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |