Patent US3448514A successfully refreshed from Google Patents.
US3448514A
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US
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Method for making a memory plane
Assignee: Unisys Corp
•
Filing: 1965-10-01
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Granted: 1969-06-10
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Expires: 1985-10-01
Abstract
No abstract record available.
Inventors
- 👤 Gilbert R Reid
- 👤 Arthur P Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:58
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/02; G11C5/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3079672A
Cited
US3266126A
Cited
US3100295A
Cited
US3084336A
Cited
US3210742A
Cited
US3176277A
Cited
US3317408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |