US3093087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for handling molten, non-ferrous metals
Assignee: Unifrax I LLC
•
Filing: 1958-08-19
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Granted: 1963-06-11
•
Expires: 1978-08-19
Abstract
No abstract record available.
Inventors
- 👤 George R Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:35
CPC Classifications
F; F27; F27D; F27D3/00; F27D3/14; Y; Y10; Y10S; Y10S417/00; Y10S417/01; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49236
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1384284A
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US1441730A
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US2166169A
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US2528210A
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US2620553A
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US2559980A
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US2642653A
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US2636826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |