Patent US2712818A successfully refreshed from Google Patents.
US2712818A
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Support for top burners
Assignee: Chambers Corp
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Filing: 1951-05-10
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Granted: 1955-07-12
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Expires: 1971-05-10
Abstract
No abstract record available.
Inventors
- 👤 John E Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:25
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/08; F24C3/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE250608C
Cited
GB190702635A
Cited
US1001450A
Cited
US1833734A
Cited
US1962819A
Cited
US1991135A
Cited
US2107972A
Cited
CH199397A
Cited
US2497787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |