Patent US2672947A successfully refreshed from Google Patents.
Patent US3341825A successfully refreshed from Google Patents.
US3341825A
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Quantum mechanical information storage system
Assignee: BUUKER RAMO CORP
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Filing: 1962-12-26
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Granted: 1967-09-12
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 John R Schrieffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:59
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G11C13/048; B; B82; B82Y; B82Y10/00; G11B; G11B11/00; G11B11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN AN INFORMATION STORAGE SYSTEM, A MEMORY MATERIAL HAVING VALENCE AND CONDUCTION ELECTRON ENERGY LEVELS AND AT LEAST ONE STORAGE ELECTRON ENERGY LEVER INTERMEDIATE SAID VALANCE AND CONDUCTION LEVELS, MEANS FOR SUBJECTING SAID MATERIAL TO A FIRST BEAM OF LIGHT OF A FIRST FREQUENCY TO RAISE ELECTRONS IN SAID MATERIAL FROM SAID VALENCE ENERGY LEVEL TO SAID STORAGE ENERGY LEVEL, MEANS FOR SUBJECTING SAID MATERIAL TO A SECOND BEAM OF LIGHT OF A SECOND FREQUENCY TO RAISE SAID ELECTRONS FROM SAID STORAGE ENERGY LEVEL TO SAID CONDUCTION ENERGY LEVEL, AND MEANS FOR DETECTING WHEN SAID ELECTRONS REACH SAID CONDUCTION ENERGY LEVEL.
Claim 2
Dependent Claim
101 words
IN AN INFORMATION STORAGE SYSTEM, A MEMORY MATERIAL HAVING VALENCE AND CONDUCTION ELECTRON ENERGY LEVELS AND AT LEAST ONE STORAGE ELECTRON ENERGY LEVER INTERMEDIATE SAID VALANCE AND CONDUCTION LEVELS, MEANS FOR SUBJECTING SAID MATERIAL TO A FIRST BEAM OF LIGHT OF A FIRST FREQUENCY TO RAISE ELECTRONS IN SAID MATERIAL FROM SAID VALENCE ENERGY LEVEL TO SAID STORAGE ENERGY LEVEL, MEANS FOR SUBJECTING SAID MATERIAL TO A SECOND BEAM OF LIGHT OF A SECOND FREQUENCY TO RAISE SAID ELECTRONS FROM SAID STORAGE ENERGY LEVEL TO SAID CONDUCTION ENERGY LEVEL, AND MEANS FOR DETECTING WHEN SAID ELECTRONS REACH SAID CONDUCTION ENERGY LEVEL.
References Cited (Backward Citations)
US2776371A
Cited
US2700147A
Cited
US2845611A
Cited
US2901662A
Cited
US3120623A
Cited
US3229221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |