Patent US830041A successfully refreshed from Google Patents.
US830041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric time-switch.
Assignee: Individual
•
Filing: 1905-06-30
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Granted: 1906-09-04
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Expires: 1925-06-30
Abstract
No abstract record available.
Inventors
- 👤 Clayton A Ballou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:01
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/34
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) | 1909-09-03 | 1910-03-05 | 1910-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-09-03 | 1914-03-05 | 1914-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-09-03 | 1918-03-05 | 1918-09-04 | $7700.00 | Window Closed / Lapsed |