US3469310A
Expired / Lapsed
US
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Methods for making magnetic core memory structures
Assignee: NCR Voyix Corp
•
Filing: 1965-03-08
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Granted: 1969-09-30
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Expires: 1985-03-08
Abstract
No abstract record available.
Inventors
- 👤 Bruce E Peck
- 👤 Calvin Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:01
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/224; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/284; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/49222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2874313A
Cited
US3106769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |