Patent US6245089B1 successfully refreshed from Google Patents.
US722645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level-indicator for liquids.
Assignee: Individual
•
Filing: 1901-10-21
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Granted: 1903-03-10
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Expires: 1921-10-21
Abstract
No abstract record available.
Inventors
- 👤 Charles A Tripp
- 👤 George R Wadleigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:44
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; G01F23/162
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) | 1906-03-09 | 1906-09-08 | 1907-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-03-09 | 1910-09-08 | 1911-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-03-09 | 1914-09-08 | 1915-03-10 | $7700.00 | Window Closed / Lapsed |