US2633933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for controlling flow of gas for a burner and its pilot
Assignee: Individual
•
Filing: 1950-11-21
•
Granted: 1953-04-07
•
Expires: 1970-11-21
Abstract
No abstract record available.
Inventors
- 👤 Ervin H Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:27
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/14; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87096; Y10T137/87113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US704315A
Cited
US1571053A
Cited
US1898569A
Cited
US1944456A
Cited
US2069017A
Cited
US2253643A
Cited
US2371727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |