US3546031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating nickel-iron-molybdenum alloy to increase induction rise and pulse permeability
Assignee: Vacuumschmelze GmbH and Co KG
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Filing: 1967-10-18
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Granted: 1970-12-08
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Expires: 1987-10-18
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Pfeifer
- 👤 Rudolf Deller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:19
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/14708; C; C22; C22C; C22C19/00; C22C19/03; C22F; C22F1/00; C22F1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |