Patent US1830673A successfully refreshed from Google Patents.
US1830673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow indicator switch housing
Assignee: Individual
•
Filing: 1929-08-22
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Granted: 1931-11-03
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Expires: 1949-08-22
Abstract
No abstract record available.
Inventors
- 👤 Harry E Noren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:49
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/0006; G01P13/0026; G01P13/0033; F; F16; F16L; F16L2101/00; F16L2101/30
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) | 1934-11-02 | 1935-05-04 | 1935-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-02 | 1939-05-04 | 1939-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-02 | 1943-05-04 | 1943-11-03 | $7700.00 | Window Closed / Lapsed |