Patent US3022497A successfully refreshed from Google Patents.
US3022497A
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Variable orifice device
Assignee: King Seeley Thermos Co
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Filing: 1956-10-10
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Granted: 1962-02-20
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Expires: 1976-10-10
Abstract
No abstract record available.
Inventors
- 👤 Warren C Tyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:29
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/04; G01F23/14; G01F23/18; G01F23/185; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8342
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1376818A
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US1564504A
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US2455305A
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US2588761A
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US2626386A
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US2671893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |