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US2720850A
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Tile supporting nose bracket for refractory furnace arches
Assignee: FRANK GROVES Co
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Filing: 1951-07-16
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Granted: 1955-10-18
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Expires: 1971-07-16
Abstract
No abstract record available.
Inventors
- 👤 Samuel H Lanyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:31
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/02; F27D1/021; F27D1/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1806809A
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US1544869A
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US1541441A
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US1760121A
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US1750355A
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US1612412A
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US1690088A
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US1764707A
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US2132517A
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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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |