Patent US2479612A successfully refreshed from Google Patents.
Patent US3324461A successfully refreshed from Google Patents.
US3324461A
Expired / Lapsed
US
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Spin echo memory system
Assignee: Lockheed Martin Corp
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Filing: 1964-05-08
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Granted: 1967-06-06
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Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 Daniel E Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:59
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
AN ELECTRON SPIN ECHO MEMORY SYSTEM COMPRISING A TRAVELING WAVE HELICAL DEVICE SURROUNDING A PARAMAGNETIC SAMPLE, A COUPLING COIL SURROUNDING SAID TRAVELING WAVE HELICAL DEVICE AND CONCENTRIC THEREWITH, A MICROWAVE TRANSMISSION LINE CONNECTED ON ONE END TO SAID COUPLING COIL AND ON THE OTHER END TO A CYCLIC MICROWAVE DEVICE, AN INPUT MICROWAVE TRANSMISSION LINE CONNECTED TO AN INPUT OF SAID CYCLIC MICROWAVE DEVICE AT A FIRST END THEREOF AND CONNECTED TO A SOURCE OF INPUT POWER AT A SECOND END THEREOF, AND AN OUTPUT MICROWAVE TRANSMISSION LINE CONNECTED TO THE SECOND END OF SAID CYCLIC MICROWAVE DEVICE AND A RECEIVER CONNECTED TO SAID MICROWAVE TRANSMISSION LINE.
References Cited (Backward Citations)
US3014210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |