US2853402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic element and method for producing the same
Assignee: Individual
•
Filing: 1954-08-06
•
Granted: 1958-09-23
•
Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Marsden S Blois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:14
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/14; H01F41/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A METHOD OF PRODUCING A MAGNETIC MATERIAL, COMPRISING EVAPORATING A FERROMAGNETIC MATERIAL AND CAUSING THE VAPOR TO CONDENSE UPON AN INSULATING FILM IN THE
Claim 2
Independent Claim
24 words
A METHOD OF PRODUCING A MAGNETIC MATERIAL, COMPRISING EVAPORATING A FERROMAGNETIC MATERIAL AND CAUSING THE VAPOR TO CONDENSE UPON AN INSULATING FILM IN THE
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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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |