US2997061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volume governor for a flowing gaseous medium
Assignee: Svenska Flaktfabriken AB
•
Filing: 1958-04-25
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Granted: 1961-08-22
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Expires: 1978-04-25
Abstract
No abstract record available.
Inventors
- 👤 Allander Claes
- 👤 Larkfeldt Birger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:15
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/34; F16K1/00; F16K1/32; F16K1/52; F16K47/00; F16K47/02; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/75; F24F13/00; F24F13/08; F24F13/10; F24F13/16; G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036; Y10T137/7722; Y10T137/7837; Y10T137/7869
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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |