US3286205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable delay line
Assignee: Individual
•
Filing: 1963-07-05
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Granted: 1966-11-15
•
Expires: 1983-07-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur D Ballato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:45
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; H03H9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A SIGNAL DELAY LINE COMPRISING A RECTANGULAR PARALLELEPIPED Y-CUT BLOCK OF ALPHA-QUART CRYSTAL ADAPTED TO TRANSMIT IN THE X-Y SHEAR MODE, A PAIR OF DISCRETE ELECTRODES MOUNTED ON AT LEAST ONE OF THE X-Z SURFACES OF SAID CRYSTAL, THE DIMENSIONS OF SAID ELECTRODES ALONG THE X-AXIS OF SAID CRYSTAL BEING SUBSTANTIALLY PARALLEL TO SAID X-AXIS AND EXTENDING SUBSTANTIALLY ALL THE WAY ACROSS SAID X-Z SURFACE, AND A VARIABLE IMPEDANCE NETWORK CONNECTED ACROSS SAID ELECTRODES FOR CONTROLLING THE TIME DELAY OF SAID DELAY LINE.
Claim 2
Dependent Claim
83 words
A SIGNAL DELAY LINE COMPRISING A RECTANGULAR PARALLELEPIPED Y-CUT BLOCK OF ALPHA-QUART CRYSTAL ADAPTED TO TRANSMIT IN THE X-Y SHEAR MODE, A PAIR OF DISCRETE ELECTRODES MOUNTED ON AT LEAST ONE OF THE X-Z SURFACES OF SAID CRYSTAL, THE DIMENSIONS OF SAID ELECTRODES ALONG THE X-AXIS OF SAID CRYSTAL BEING SUBSTANTIALLY PARALLEL TO SAID X-AXIS AND EXTENDING SUBSTANTIALLY ALL THE WAY ACROSS SAID X-Z SURFACE, AND A VARIABLE IMPEDANCE NETWORK CONNECTED ACROSS SAID ELECTRODES FOR CONTROLLING THE TIME DELAY OF SAID DELAY LINE.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |