US3350665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable elastic wave delay line using two strips pressed together
Assignee: AT&T Inc
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Filing: 1965-11-19
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Granted: 1967-10-31
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Expires: 1985-11-19
Abstract
No abstract record available.
Inventors
- 👤 Irvin E Fair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:05
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; H03H9/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A VARIABLE DELAY LINE COMPRISING A PAIR OF ELONGATED THIN STRIPS OF ELASTIC WAVE TRANSMISSION MATERIAL EACH HAVING RECTANGULAR CROSS SECTIONS WITH WIDTH DIMENSIONS MANY TIMES THAT OF THE THICKNESS DIMENSIONS THEREOF, A TRANSDUCER MOUNTED ON ONE END OF EACH OF SAID STRIPS FOR GENERATING AND RESPONDING TO ELASTIC WAVE MOTION IN THAT STRIP, AND MEANS FOR PRESSING SAID STRIPS TOGETHER IN RESTRICTED REGION THAT CAN BE MOVED ALONG THE LENGTH OF SAID STRIPS TO TRANSFER WAVE MOTION FROM ONE STRIP TO THE OTHER TO DEFINE A TRANSMISSION PATH BETWEEN SAID TRANS-
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |