US2676757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner control valve
Assignee: Milwaukee Gas Specialty Co
•
Filing: 1950-04-20
•
Granted: 1954-04-27
•
Expires: 1970-04-20
Abstract
No abstract record available.
Inventors
- 👤 John H Thornbery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:19
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1949030A
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US2032046A
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US843174A
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US2002513A
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US2232502A
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US2291783A
Cited
US2318801A
Cited
US2363063A
Cited
US2531824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |