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Patent US3436688A successfully refreshed from Google Patents.
US3436688A
Expired / Lapsed
US
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Variable delay line with movable electrode
Assignee: LAB FOR ELECTRONICS Inc
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Filing: 1966-05-24
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Granted: 1969-04-01
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Expires: 1986-05-24
Abstract
No abstract record available.
Inventors
- 👤 Raoul Michel Zilberstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:38
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; H03H9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A VARIABLE DELAY LINE LINE COMPRISING: AN ACOUSIC WAVE PROPAGATING MEDIUM HAVING PIEZOELECTRIC PROPERTIES; MEANS TO COUPLE AN ACOUSTIC WAVE TO SAID PROPAGATING MEDIUM; AND, A PAIR OF ELECTRODES COOPERATING WITH SAID MEDIUM TO SENSE THE ACOUSTIC WAVE PROGATING THEREIN, AT LEAST ONE OF SAID ELECTRODES BEING MOVEABLE WITH RESPECT TO SAID ACOUSTIC WAVE PROPAGATING MEDIUM TO PROVIDE AN ADJUSTABLE DELAY TIME.
Claim 2
Dependent Claim
62 words
A VARIABLE DELAY LINE LINE COMPRISING: AN ACOUSIC WAVE PROPAGATING MEDIUM HAVING PIEZOELECTRIC PROPERTIES; MEANS TO COUPLE AN ACOUSTIC WAVE TO SAID PROPAGATING MEDIUM; AND, A PAIR OF ELECTRODES COOPERATING WITH SAID MEDIUM TO SENSE THE ACOUSTIC WAVE PROGATING THEREIN, AT LEAST ONE OF SAID ELECTRODES BEING MOVEABLE WITH RESPECT TO SAID ACOUSTIC WAVE PROPAGATING MEDIUM TO PROVIDE AN ADJUSTABLE DELAY TIME.
References Cited (Backward Citations)
US2811696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |