US891339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway-signal.
Assignee: General Electric Co
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Filing: 1907-12-11
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Granted: 1908-06-23
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Expires: 1927-12-11
Abstract
No abstract record available.
Inventors
- 👤 Franz Hirt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:41
CPC Classifications
B; B61; B61L; B61L3/00; B61L3/02; B61L3/06; B61L3/065
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) | 1911-06-23 | 1911-12-23 | 1912-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-06-23 | 1915-12-23 | 1916-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-06-23 | 1919-12-23 | 1920-06-23 | $7700.00 | Window Closed / Lapsed |