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Patent US2699653A successfully refreshed from Google Patents.
US2699653A
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Apparatus for automatically regulating the level of liquids
Assignee: Ateliers Meyret-Beylier & Piccard-Pictet
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Filing: 1948-02-19
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Granted: 1955-01-18
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Expires: 1968-02-19
Abstract
No abstract record available.
Inventors
- 👤 Ponsar Yves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:37
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7339; Y10T137/7358; Y10T137/7381; Y10T137/7387; Y10T137/7391; Y10T137/7407
Claims Analysis
Total Claims: 0
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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) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |