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Patent US2764436A successfully refreshed from Google Patents.
US2764436A
Expired / Lapsed
US
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Rail bond
Assignee: United States Steel Corp
•
Filing: 1953-11-20
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Granted: 1956-09-25
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Expires: 1973-11-20
Abstract
No abstract record available.
Inventors
- 👤 Alan E Brickman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:05
CPC Classifications
B; B60; B60M; B60M5/00; Y; Y10; Y10T; Y10T403/00; Y10T403/47; Y10T403/473
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA496101A
Cited
US772172A
Cited
US1369927A
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US2113674A
Cited
US2180318A
Cited
US2151292A
Cited
US2190469A
Cited
US2318604A
Cited
US2622903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |