Patent US3606676A successfully refreshed from Google Patents.
US3606676A
Expired / Lapsed
US
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Silicate bonding of magnetic cores
Assignee: Armco Inc
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Filing: 1969-03-21
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Granted: 1971-09-21
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Expires: 1989-03-21
Abstract
Abstract A method of bonding the contiguous windings of a wound core of magnetic strip material by the steps which include coating said strip with a silicate solution and drying in situ prior to or after winding in to said core. During a subsequent stress relief anneal, the silicate fuses the core togethe thereby effecting the bond.
Inventors
- 👤 Dale M Kohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:11
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F27/00; H01F27/24; H01F27/25; H01F41/0213; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |