Patent US2761655A successfully refreshed from Google Patents.
US2761655A
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US
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Regulating device
Assignee: Svenska Flaktfabriken AB
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Filing: 1952-04-23
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Granted: 1956-09-04
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Expires: 1972-04-23
Abstract
No abstract record available.
Inventors
- 👤 Lunden Bror Evert
- 👤 Conradi Henrik
- 👤 Larsson Nils Erik Birger
- 👤 Airas Timo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:20
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; B; B01; B01D; B01D61/00; B01D61/02; B01D61/025; B01D61/04; B01D61/58; C; C02; C02F; C02F9/00; F; F16; F16L; F16L17/00; F16L17/02; F16L17/03; F16L17/035; F16L39/00; F16L5/00; F24; F24F; F24F11/00; F24F11/30; F24F11/62; G05B; G05B11/00; G05B11/01; G05B11/012; G05D23/1906; G05D23/1913; B01D2311/00; B01D2311/04; B01D61/14; B01D61/145; B01D61/147; C02F1/00; C02F1/001; C02F1/44; C02F1/441; C02F1/444; C02F1/52; C02F1/5236; C02F1/54; C02F1/56; C02F2103/00; C02F2103/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1743545A
Cited
GB353550A
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US2257540A
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US2291840A
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US2424305A
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US2502967A
Cited
US2612026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |