Patent US2851241A successfully refreshed from Google Patents.
US2851241A
Expired / Lapsed
US
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Control valves for gaseous fuel burning appliances such as stoves, ranges, heaters and lamps
Assignee: SNA Europe Industries AB
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Filing: 1955-12-07
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Granted: 1958-09-09
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Expires: 1975-12-07
Abstract
No abstract record available.
Inventors
- 👤 Wallgren Harald Anton Ake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:16
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/14; F16K5/00; F16K5/08; F16K5/12; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87981; Y10T137/87997; Y10T137/88005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1582938A
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US1842902A
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US1835020A
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US1989870A
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US2010088A
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US2255929A
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US2170922A
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US2098583A
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US2497635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |