Patent US1183882A successfully refreshed from Google Patents.
US2836191A
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Damper device
Assignee: Svenska Flaktfabriken AB
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Filing: 1955-01-28
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Granted: 1958-05-27
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Expires: 1975-01-28
Abstract
No abstract record available.
Inventors
- 👤 Wallin Sven
- 👤 Uppvall Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:18
CPC Classifications
F; F28; F28D; F28D17/00; F16; F16K; F16K1/00; F16K1/16; F16K1/165; F23; F23M; F23M9/00; F23M9/02; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F12/00; F24F12/001; Y; Y02; Y02B; Y02B30/00; Y02B30/56; Y10; Y10T; Y10T137/00; Y10T137/5544; Y10T137/5689; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/877; Y10T137/87708
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |