Patent US3265961A successfully refreshed from Google Patents.
US3265961A
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Spin echo apparatus
Assignee: AT&T Inc
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Filing: 1962-06-25
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Granted: 1966-08-09
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Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 William B Mims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:30
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/04; H03K5/06; H03K5/065; G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/26; G01S13/28; G01S13/282
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
PULSE TRANSLATING APPARATUS COMPRISING A GYROMAGNETIC MEDIUM, MEANS FOR DIFFERENTIALLY POLARIZING GYROMAGNETIC ELEMENTS IN SAID MEDIUM TO ESTABLISH DIFFERENTIAL LARMOR PRECESSION FREQUENCIES THEREIN, IN, MEANS FOR APPLYING FREQUENCY MODULATED SIGNAL PULSES TO SAID MEDIUM FOR SEQUENTIALLY INCLUDING PHASE DIVERGENT SPIN PRECESSION IN GROUPS OF SAID ELEMENTS HAVING PARTICULAR LARMOR FREQUENCIES, MEANS FOR APPLYING FREQUENCY MODULATED PULSES TO SAID MEDIUM FOR SEQUENTIALLY REVERSING THE PRECESSIONAL PHASE RELATIONS TO PHASE CONVERGENCE IN GROUPS OF SAID PRECESSING ELEMENTS HAVING PARTICULAR LARMOR FREQUENCIES, AND MEANS FOR DETECTING SPIN ECHO SIGNALS INDUCED BY THE CONVERGENCE OF MAGNETIC MOMENTS OF ELEMENTS IN EACH OF SAID GROUPS.
Claim 2
Dependent Claim
100 words
PULSE TRANSLATING APPARATUS COMPRISING A GYROMAGNETIC MEDIUM, MEANS FOR DIFFERENTIALLY POLARIZING GYROMAGNETIC ELEMENTS IN SAID MEDIUM TO ESTABLISH DIFFERENTIAL LARMOR PRECESSION FREQUENCIES THEREIN, IN, MEANS FOR APPLYING FREQUENCY MODULATED SIGNAL PULSES TO SAID MEDIUM FOR SEQUENTIALLY INCLUDING PHASE DIVERGENT SPIN PRECESSION IN GROUPS OF SAID ELEMENTS HAVING PARTICULAR LARMOR FREQUENCIES, MEANS FOR APPLYING FREQUENCY MODULATED PULSES TO SAID MEDIUM FOR SEQUENTIALLY REVERSING THE PRECESSIONAL PHASE RELATIONS TO PHASE CONVERGENCE IN GROUPS OF SAID PRECESSING ELEMENTS HAVING PARTICULAR LARMOR FREQUENCIES, AND MEANS FOR DETECTING SPIN ECHO SIGNALS INDUCED BY THE CONVERGENCE OF MAGNETIC MOMENTS OF ELEMENTS IN EACH OF SAID GROUPS.
References Cited (Backward Citations)
US2887673A
Cited
US2832061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |