Patent US206749A successfully refreshed from Google Patents.
US206749A
Expired / Lapsed
US
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Improvement in signaling apparatus
Assignee: —
•
Filing: —
•
Granted: 1878-08-06
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Expires: 1895-08-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:04
CPC Classifications
G; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G01D; G01D13/00; G01D13/22
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) | 1881-08-05 | 1882-02-04 | 1882-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1885-08-05 | 1886-02-04 | 1886-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1889-08-05 | 1890-02-04 | 1890-08-06 | $7700.00 | Window Closed / Lapsed |