US2691505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spike pulling machine
Assignee: Individual
•
Filing: 1951-01-16
•
Granted: 1954-10-12
•
Expires: 1971-01-16
Abstract
No abstract record available.
Inventors
- 👤 Samuel R Hursh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:14
CPC Classifications
E; E01; E01B; E01B29/00; E01B29/24; E01B29/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1812577A
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US1771712A
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US1904115A
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US1938485A
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US2170464A
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US2291893A
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US2471770A
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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) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |