US2519320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car construction
Assignee: Individual
•
Filing: 1948-03-19
•
Granted: 1950-08-15
•
Expires: 1968-03-19
Abstract
No abstract record available.
Inventors
- 👤 Robert A Meldrum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:53
CPC Classifications
B; B61; B61F; B61F1/00; B61F1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US696150A
Cited
US998696A
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US1173118A
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US1640471A
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US2084161A
Cited
US2160477A
Cited
US2143273A
Cited
US2183054A
Cited
US2146221A
Cited
US2299421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |