US3391970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical memory in which a digital light deflector is used in a bi-directional manner
Assignee: International Business Machines Corp
•
Filing: 1964-06-30
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Granted: 1968-07-09
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Glenn T Sincerbox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:04
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10831; G02; G02F; G02F1/00; G02F1/29; G02F1/31; G11; G11C; G11C13/00; G11C13/04; H; H03; H03M; H03M1/00; H03M1/66; H03M1/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2958258A
Cited
US3144807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |