US1090301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of signal-lamps.
Assignee: Hitachi Rail STS USA Inc
•
Filing: 1911-11-20
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Granted: 1914-03-17
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Expires: 1931-11-20
Abstract
No abstract record available.
Inventors
- 👤 Laurence A Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:27
CPC Classifications
H; H02; H02J; H02J13/00; H02J13/13; H02J13/1311; H02J13/1313; Y; Y02; Y02B; Y02B90/00; Y02B90/20; Y04; Y04S; Y04S40/00; Y04S40/12; Y04S40/121
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) | 1917-03-16 | 1917-09-15 | 1918-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-03-16 | 1921-09-15 | 1922-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-03-16 | 1925-09-15 | 1926-03-17 | $7700.00 | Window Closed / Lapsed |