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US2908228A
Expired / Lapsed
US
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Apparatus for removing and replacing cross ties in a railway track
Assignee: Kershaw Manufacturing Co Inc
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Filing: 1954-10-25
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Granted: 1959-10-13
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Expires: 1974-10-25
Abstract
No abstract record available.
Inventors
- 👤 Kershaw Royce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:08
CPC Classifications
E; E01; E01B; E01B29/00; E01B29/06; E01B29/09; E01B29/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735375A
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US1015475A
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US1034072A
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US1186002A
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US1482981A
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US1732568A
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US1822409A
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US2355573A
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US2786426A
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US2760440A
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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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |