US2494243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure ribbon-type gas burner
Assignee: Individual
•
Filing: 1944-07-31
•
Granted: 1950-01-10
•
Expires: 1964-07-31
Abstract
No abstract record available.
Inventors
- 👤 Louis D Houlis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:16
CPC Classifications
F; F23; F23C; F23C99/00; A; A21; A21B; A21B3/00; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/10; F23D14/105; F23D14/34; F23D14/36; F23C2700/00; F23C2700/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US507748A
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US1631348A
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US1090402A
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US1466356A
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US1878478A
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US1883541A
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US2015822A
Cited
US1961933A
Cited
GB387871A
Cited
US1955512A
Cited
US2164417A
Cited
US2353865A
Cited
US2368850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |