Patent US2627910A successfully refreshed from Google Patents.
US2627910A
Expired / Lapsed
US
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Grid port structure for gas burners
Assignee: Geo D Roper Corp
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Filing: 1947-10-23
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Granted: 1953-02-10
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Expires: 1967-10-23
Abstract
No abstract record available.
Inventors
- 👤 Victor R Abrams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:50
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1428146A
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US1641350A
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US1896286A
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US1964638A
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US2023624A
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US2210069A
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US2480658A
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US2435391A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |