US707305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric signal for elevators.
Assignee: Individual
•
Filing: 1901-11-07
•
Granted: 1902-08-19
•
Expires: 1921-11-07
Abstract
No abstract record available.
Inventors
- 👤 Lewis K Curlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:52
CPC Classifications
B; B66; B66B; B66B3/00; B66B3/02
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) | 1905-08-18 | 1906-02-17 | 1906-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-08-18 | 1910-02-17 | 1910-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-08-18 | 1914-02-17 | 1914-08-19 | $7700.00 | Window Closed / Lapsed |