Patent US2623920A successfully refreshed from Google Patents.
US2623920A
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Bonded magnetic core and process for producing it
Assignee: Westinghouse Electric Corp
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Filing: 1951-09-06
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Granted: 1952-12-30
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Expires: 1971-09-06
Abstract
No abstract record available.
Inventors
- 👤 James G Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:42
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0213; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
A BONDED, INTEGRAL MAGNETIC CORE COMPRISING A PLURALITY OF ASSEMBLED LAMINATIONS OF MAGNETIC MATERIAL, RESINOUS BONDING MATERIAL APPLIED BETWEEN LAMINATIONS, THE RESINOUS BONDING MATERIAL FILLING LESS THAN 18% OF THE INTERLAMINAR SPACES, A NON-CONDUCTING FIBROUS MATERIAL WRAPPED ABOUT A MAJOR PROPORTION OF THE EXTERIOR SURFACE OF THE MAGNETIC CORE, A RELATIVELY HEAVY COATING OF RESIN APPLIED TO THE EXTERIOR SURFACE, THE FIBROUS WRAPPING MATERIAL AND THE HEAVY COATING OF RESIN APPLIED TO THE EXTERIOR OF THE CORE PROVIDING FOR BONDING THE LAMINATIONS INTO AN INTEGRAL CORE.
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) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |