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US2890318A
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Aluminum sheathed heating elements in aluminum die castings
Assignee: Vibrantz Corp
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Filing: 1955-08-24
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Granted: 1959-06-09
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Expires: 1975-08-24
Abstract
No abstract record available.
Inventors
- 👤 Marvin A Kruse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:28
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/42; H05B3/48; H05B3/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1359400A
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US2213969A
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US2220776A
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US2389587A
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GB581912A
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US2725453A
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GB720939A
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US2684428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |