Patent US5360450A successfully refreshed from Google Patents.
US3525985A
Expired / Lapsed
US
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Data handling arrangements
Assignee: English Electric Computers Ltd
•
Filing: 1968-05-02
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Granted: 1970-08-25
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Expires: 1988-05-02
Abstract
No abstract record available.
Inventors
- 👤 Peter M Melliar-Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:07
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/02; G06F12/08; G06F12/0802; G06F12/0804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2843841A
Cited
US3029414A
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US3231868A
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US3251041A
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US3292152A
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US3275991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |