US819322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric signaling.
Assignee: Hitachi Rail STS USA Inc
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Filing: 1901-11-16
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Granted: 1906-05-01
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Expires: 1921-11-16
Abstract
No abstract record available.
Inventors
- 👤 Jacob B Struble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:35
CPC Classifications
B; B61; B61L; B61L1/00; B61L1/18; B61L1/181; B61L1/187
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) | 1909-04-30 | 1909-10-30 | 1910-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-04-30 | 1913-10-30 | 1914-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-04-30 | 1917-10-30 | 1918-05-01 | $7700.00 | Window Closed / Lapsed |