US2867112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire mesh supported refractory
Assignee: General Electric Co
•
Filing: 1953-11-20
•
Granted: 1959-01-06
•
Expires: 1973-11-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Krone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:55
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE502488A
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BE510557A
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US375321A
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GB117942A
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US1389942A
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CA195005A
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GB244144A
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US1610996A
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GB463816A
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US2296392A
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US2298102A
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US2321813A
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US2564497A
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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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |