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Patent US30426A successfully refreshed from Google Patents.
US30426A
Expired / Lapsed
US
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Improvement in metallic railroad-cars
Assignee: —
•
Filing: —
•
Granted: 1860-10-16
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Expires: 1877-10-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:51
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/08; Y; Y02; Y02T; Y02T30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1863-10-16 | 1864-04-16 | 1864-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1867-10-16 | 1868-04-16 | 1868-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1871-10-16 | 1872-04-16 | 1872-10-16 | $7700.00 | Window Closed / Lapsed |