US686341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for maintaining the water-level in reservoirs.
Assignee: Individual
•
Filing: 1901-06-03
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Granted: 1901-11-12
•
Expires: 1921-06-03
Abstract
No abstract record available.
Inventors
- 👤 George I Rockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:32
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/077; F; F15; F15B; F15B1/00; F15B1/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86043
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) | 1904-11-11 | 1905-05-13 | 1905-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-11-11 | 1909-05-13 | 1909-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-11-11 | 1913-05-13 | 1913-11-12 | $7700.00 | Window Closed / Lapsed |