US2652853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for adjusting the height of a ring of fluid, particularly water, in hydrodynamic brakes and such like
Assignee: Individual
•
Filing: 1947-07-31
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Granted: 1953-09-22
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Expires: 1967-07-31
Abstract
No abstract record available.
Inventors
- 👤 Ranzi Ubaldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:25
CPC Classifications
G; G01; G01L; G01L3/00; G01L3/16; G01L3/20; F; F16; F16D; F16D57/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86236; Y10T137/9464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US703315A
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US907851A
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US1685735A
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US1854952A
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US2061656A
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US1972741A
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US2367038A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |