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US2970830A
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Varying the falling speed of a stream of molten metal
Assignee: La Soudure Electrique Autogene SA
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Filing: 1958-03-10
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Granted: 1961-02-07
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Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Siegfried Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:28
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/02; H02K44/06; G; G21; G21C; G21C15/00; G21C15/24; G21C15/243; G21C15/247; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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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) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |