Patent US2875953A successfully refreshed from Google Patents.
US2875953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway track construction
Assignee: Individual
•
Filing: 1954-09-21
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Granted: 1959-03-03
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Expires: 1974-09-21
Abstract
No abstract record available.
Inventors
- 👤 Weber Carl
- 👤 Kenneth L Henson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:37
CPC Classifications
E; E01; E01B; E01B3/00; E01B3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1436847A
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US1915032A
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US2004369A
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US1976857A
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US2051619A
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US2363018A
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US2556622A
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US2611545A
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DE850902C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |