Patent US2781002A successfully refreshed from Google Patents.
US2781002A
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US
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Positioning and removing device for railroad machine
Assignee: Nordberg Manufacturing Co
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Filing: 1952-08-16
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Granted: 1957-02-12
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Expires: 1972-08-16
Abstract
No abstract record available.
Inventors
- 👤 Henry H Talboys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:54
CPC Classifications
B; B61; B61K; B61K5/00; B61K5/02; B61K7/00; B61K7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US633235A
Cited
US701207A
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US1017290A
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DE436455C
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US1733520A
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US1780989A
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US1776884A
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US2197375A
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US2627234A
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US2478535A
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US2530588A
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US2530589A
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US2693769A
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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) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |