US3073728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic materials
Assignee: General Electric Co
•
Filing: 1960-08-30
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Granted: 1963-01-15
•
Expires: 1980-08-30
Abstract
No abstract record available.
Inventors
- 👤 Richard B Falk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:23
CPC Classifications
C; C22; C22C; C22C11/00; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04; H01F1/06; H01F1/08; H01F1/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A MAGNETIC STRUCTURE COMPRISING FINELY DIVIDED PARTICLES OF MAGNETIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, NICKEL AND ALLOYS CONTAINING IRON, COBALT AND NICKEL, AND A MATRIX MATERIAL SELECTED FROM THE GROUP CONSISTING OF LEAD AND A LEAD-ANTIMONY ALLOY, SAID MATRIX CONTAINING AT LEAST 0.09 PART BY WEIGHT OF CADMIUM PER PART BY WEIGHT OF THE LEAD.
Claim 2
Dependent Claim
59 words
A MAGNETIC STRUCTURE COMPRISING FINELY DIVIDED PARTICLES OF MAGNETIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, NICKEL AND ALLOYS CONTAINING IRON, COBALT AND NICKEL, AND A MATRIX MATERIAL SELECTED FROM THE GROUP CONSISTING OF LEAD AND A LEAD-ANTIMONY ALLOY, SAID MATRIX CONTAINING AT LEAST 0.09 PART BY WEIGHT OF CADMIUM PER PART BY WEIGHT OF THE LEAD.
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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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |