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US352647A
Expired / Lapsed
US
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Automatic electric liquid-level indicator
Assignee: —
•
Filing: —
•
Granted: 1886-11-16
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Expires: 1903-11-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/284; G01F23/292; G01F23/2921
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) | 1889-11-15 | 1890-05-17 | 1890-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1893-11-15 | 1894-05-17 | 1894-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1897-11-15 | 1898-05-17 | 1898-11-16 | $7700.00 | Window Closed / Lapsed |