Patent JPH0512596A successfully refreshed from Google Patents.
Patent US2737127A successfully refreshed from Google Patents.
US2737127A
Expired / Lapsed
US
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Rail car trucks
Assignee: Doosan Bobcat North America Inc
•
Filing: 1950-05-20
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Granted: 1956-03-06
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Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Alfred O Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:39
CPC Classifications
B; B61; B61F; B61F3/00; B61F3/02; B61F3/08
Claims Analysis
Total Claims: 0
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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) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |