US2851241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valves for gaseous fuel burning appliances such as stoves, ranges, heaters and lamps
Assignee: SNA Europe Industries AB
•
Filing: 1955-12-07
•
Granted: 1958-09-09
•
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 18:48
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US692808A
Cited
US750539A
Cited
GB122987A
Cited
US1582938A
Cited
US1842902A
Cited
US1835020A
Cited
US1989870A
Cited
US2010088A
Cited
US2255929A
Cited
US2170922A
Cited
US2098583A
Cited
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 |