Patent US1693931A successfully refreshed from Google Patents.
US1693931A
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Burner and valvular control therefor
Assignee: J W CLUNE CO
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Filing: 1926-11-30
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Granted: 1928-12-04
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Expires: 1946-11-30
Abstract
No abstract record available.
Inventors
- 👤 Edward L Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:12
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/46; F02; F02M; F02M61/00; F02M61/04; F02M61/08; F23N; F23N1/00; F02M2700/00; F02M2700/07; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/428; Y10T137/4322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-12-04 | 1932-06-04 | 1932-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-12-04 | 1936-06-04 | 1936-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-12-04 | 1940-06-04 | 1940-12-04 | $7700.00 | Window Closed / Lapsed |