US2499707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas range top grate and burner
Assignee: Southern California Gas Co
•
Filing: 1944-08-05
•
Granted: 1950-03-07
•
Expires: 1964-08-05
Abstract
No abstract record available.
Inventors
- 👤 Harry L Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:31
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/06; F23D23/00; F24; F24C; F24C3/00; F24C3/08; F24C3/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US527566A
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FR324657A
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US1671192A
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US1959657A
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FR785164A
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US2088652A
Cited
US2059534A
Cited
US2166442A
Cited
US2148777A
Cited
US2196339A
Cited
FR859286A
Cited
US2285278A
Cited
US2337095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |