US3764486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making memory planes
Assignee: Buckbee Mears Co
•
Filing: 1972-01-03
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Granted: 1973-10-09
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Expires: 1992-01-03
Abstract
Abstract A METHOD OF ELECTRODEPOSITION AND SELECTIVE ETCHING TO PRODUCE A SET OF DIGIT LINES SUITABLE FOR USE IN A MAGNETIC MEMORY DEVICE.
Inventors
- 👤 R Olson
- 👤 M Tinklenberg
- 👤 P Morawetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:03
CPC Classifications
H; H01; H01F; H01F10/00; H01F10/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155
Claims Analysis
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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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |