US3270118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the vacuum melting of metals by means of electron beam
Assignee: Bendix Balzers Vacuum Inc
•
Filing: 1963-07-08
•
Granted: 1966-08-30
•
Expires: 1983-07-08
Abstract
No abstract record available.
Inventors
- 👤 Gaydou Francois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:57
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; C; C22; C22B; C22B9/00; C22B9/04; C22B9/16; C22B9/22; C22B9/228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1100835B
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US3005859A
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US3105275A
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US3040112A
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US3068309A
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FR1274810A
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FR1334547A
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GB972908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |