Patent US3451129A successfully refreshed from Google Patents.
US3451129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing digital computer memories
Assignee: Massachusetts Institute of Technology
•
Filing: 1966-01-05
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Granted: 1969-06-24
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Expires: 1986-01-05
Abstract
No abstract record available.
Inventors
- 👤 Ramon L Alonso
- 👤 Robert E Oleksiak
- 👤 William B Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:25
CPC Classifications
G; G11; G11C; G11C5/00; G11C5/06; G11C5/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T29/53; Y10T29/5313; Y10T29/53165; Y10T29/532; Y10T29/53243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1828336A
Cited
US1945997A
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US3100510A
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US3259968A
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US3174214A
Cited
US3258039A
Cited
US3340403A
Cited
US3310867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |