US2797889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic spike puller
Assignee: Nordberg Manufacturing Co
•
Filing: 1953-11-04
•
Granted: 1957-07-02
•
Expires: 1973-11-04
Abstract
No abstract record available.
Inventors
- 👤 Henry H Talboys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:35
CPC Classifications
E; E01; E01B; E01B29/00; E01B29/24; E01B29/26; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/5383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1595420A
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US965716A
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US1093863A
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US1521382A
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US1660720A
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US1650096A
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US1771712A
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US2216973A
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US2691505A
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US2639887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |