Patent US3384875A successfully refreshed from Google Patents.
US3384875A
Expired / Lapsed
US
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Reference selection apparatus for cross correlation
Assignee: International Business Machines Corp
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Filing: 1965-09-27
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Granted: 1968-05-21
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Jack F Bene
- 👤 Paul E Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:15
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G11C13/048; G06; G06F; G06F9/00; G06F9/06; G06F9/44; G06F9/448; G06F9/4482; G06F9/4484; G06V; G06V30/00; G06V30/10; G06V30/24; G06V30/242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |