US3302136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic wavefront shaping
Assignee: AT&T Inc
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Filing: 1964-10-06
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Granted: 1967-01-31
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Expires: 1984-10-06
Abstract
No abstract record available.
Inventors
- 👤 Bert A Auld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:32
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; G; G10; G10K; G10K11/00; G10K11/18; G10K11/24; H03H9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN COMBINATION, AN ELASTIC WAVE TRANSMISSION PATH, MEANS FOR LAUNCHING AN ELASTIC WAVE PROPAGATING IN A GIVEN DIRECTION ALONG SAID PATH, AND MEANS INTERPOSED ALONG SAID PATH FOR SHAPING THE WAVEFRONT OF SAID WAVE, SAID MEANS COMPRISING A BODY OF NONCONDUCTIVE FERROMAGNETIC MATERIAL MAGNETIZED WITH COMPONENTS OF MAGNETIZATION PARALLEL TO SAID GIVEN DIRECTION THAT VARY IN STRENGTH WITH RADIAL DISTANCE AWAY FROM THE CENTER OF SAID PATH.
Claim 2
Dependent Claim
67 words
IN COMBINATION, AN ELASTIC WAVE TRANSMISSION PATH, MEANS FOR LAUNCHING AN ELASTIC WAVE PROPAGATING IN A GIVEN DIRECTION ALONG SAID PATH, AND MEANS INTERPOSED ALONG SAID PATH FOR SHAPING THE WAVEFRONT OF SAID WAVE, SAID MEANS COMPRISING A BODY OF NONCONDUCTIVE FERROMAGNETIC MATERIAL MAGNETIZED WITH COMPONENTS OF MAGNETIZATION PARALLEL TO SAID GIVEN DIRECTION THAT VARY IN STRENGTH WITH RADIAL DISTANCE AWAY FROM THE CENTER OF SAID PATH.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |