US2922985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shifting register and storage device therefor
Assignee: International Business Machines Corp
•
Filing: 1953-03-05
•
Granted: 1960-01-26
•
Expires: 1973-03-05
Abstract
No abstract record available.
Inventors
- 👤 David J Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:09
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/74; G; G11; G11C; G11C19/00; G11C19/18; G11C19/182; G11C19/20; G11C19/202; G11C19/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2131322A
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US2294863A
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US2531976A
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US2629827A
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US2649502A
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US2591406A
Cited
US2720642A
Cited
US2644893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |