Patent US3083444A successfully refreshed from Google Patents.
US3083444A
Expired / Lapsed
US
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Manufacture of delay lines
Assignee: Teledyne UK Ltd
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Filing: 1959-11-30
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Granted: 1963-04-02
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Expires: 1979-11-30
Abstract
No abstract record available.
Inventors
- 👤 Mitchell Arthur George
- 👤 Bagnall John Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:12
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/49799; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD OF MANUFACTURING A COMB-LIKE MEMBER HAVING A SET OF SPACED FINGERS EXTENDING FROM A BACKPLATE FOR AN INTERDIGITAL DELAY LINE, SAID METHOD INCLUDING THE STEPS OF MAKING A CLAMPED STACK OF PLATES OF PREDETERMINED THICKNESSES AND OF THE SAME SHAPE AND FACE AREAS, SAID PLATES INCLUDING PLATES OF ONE METAL SUBSTANTIALLY INSOLUBLE IN A PREDETERMINED SOLVENT AND HAVING THICKNESSES EQUAL TO THE WIDTHS OF SAID FINGERS AND FURTHER PLATES OF DIFFERENT MATERIAL SOLUBLE IN SAID PREDETERMINED SOLVENT AND HAVING THICKNESSES EQUAL TO THE SPACING BETWEEN SAID FINGERS WITH THE FURTHER PLATES INTERSPERSED BETWEEN THE PLATES OF SAID ONE METAL; DEPOSITING METAL TO A PREDETERMINED THICKNESS ON ALL OUTER FACES OF THE STACK EXCEPT ON ONE LONGITUDINAL OUTER FACE OF THE STACK, SAID PREDETERMINED THICKNESS OF THE DEPOSITED METAL BEING SUFFICIENT TO CAUSE SAID DEPOSITED METAL MECHANICALLY AND ELECTRICALLY TO BOND SAID DEPOSITED METAL TO THE PLATES OF SAID ONE METAL AND TO HOLD TOGETHER AND UNITE SAID STACK OF PLATES.
Claim 2
Independent Claim
162 words
A METHOD OF MANUFACTURING A COMB-LIKE MEMBER HAVING A SET OF SPACED FINGERS EXTENDING FROM A BACKPLATE FOR AN INTERDIGITAL DELAY LINE, SAID METHOD INCLUDING THE STEPS OF MAKING A CLAMPED STACK OF PLATES OF PREDETERMINED THICKNESSES AND OF THE SAME SHAPE AND FACE AREAS, SAID PLATES INCLUDING PLATES OF ONE METAL SUBSTANTIALLY INSOLUBLE IN A PREDETERMINED SOLVENT AND HAVING THICKNESSES EQUAL TO THE WIDTHS OF SAID FINGERS AND FURTHER PLATES OF DIFFERENT MATERIAL SOLUBLE IN SAID PREDETERMINED SOLVENT AND HAVING THICKNESSES EQUAL TO THE SPACING BETWEEN SAID FINGERS WITH THE FURTHER PLATES INTERSPERSED BETWEEN THE PLATES OF SAID ONE METAL; DEPOSITING METAL TO A PREDETERMINED THICKNESS ON ALL OUTER FACES OF THE STACK EXCEPT ON ONE LONGITUDINAL OUTER FACE OF THE STACK, SAID PREDETERMINED THICKNESS OF THE DEPOSITED METAL BEING SUFFICIENT TO CAUSE SAID DEPOSITED METAL MECHANICALLY AND ELECTRICALLY TO BOND SAID DEPOSITED METAL TO THE PLATES OF SAID ONE METAL AND TO HOLD TOGETHER AND UNITE SAID STACK OF PLATES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |