Patent US3130090A successfully refreshed from Google Patents.
US3130090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-directional oriented silicon-iron
Assignee: Armco Inc
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Filing: 1962-01-19
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Granted: 1964-04-21
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Expires: 1982-01-19
Abstract
No abstract record available.
Inventors
- 👤 John M Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:41
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A COLD ROLLED SILICON-IRON ALLOY SHEET STOCK CONTAINING SUBSTANTIALLY 2.0 TO 3.5% SILICON AND CHARACTERIZED BY A CRYSTAL ORIENTATION IN WHICH (100) PLANES OF A MAJORITY OF THE CUBIC CRYSTALS LIE PARALLEL TO THE SURFACES OF THE SHEET STOCK, WITH THE EDGES OF THE CUBES SUBSTANTIALLY RANDOMLY ORIENTED IN THE PLANE OF THE STOCK, THE SAID SHEET STOCK BEING CHARACTERIZED BY A SUBSTANTIALLY UNIFORM PERMEABILITY IN ALL DIRECTIONS WITHIN THE PLANE OF THE SHEET STOCK.
Claim 2
Dependent Claim
75 words
A COLD ROLLED SILICON-IRON ALLOY SHEET STOCK CONTAINING SUBSTANTIALLY 2.0 TO 3.5% SILICON AND CHARACTERIZED BY A CRYSTAL ORIENTATION IN WHICH (100) PLANES OF A MAJORITY OF THE CUBIC CRYSTALS LIE PARALLEL TO THE SURFACES OF THE SHEET STOCK, WITH THE EDGES OF THE CUBES SUBSTANTIALLY RANDOMLY ORIENTED IN THE PLANE OF THE STOCK, THE SAID SHEET STOCK BEING CHARACTERIZED BY A SUBSTANTIALLY UNIFORM PERMEABILITY IN ALL DIRECTIONS WITHIN THE PLANE OF THE SHEET STOCK.
References Cited (Backward Citations)
US2943007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |