US3584376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microstrip delay line and a method of manufacturing same
Assignee: Sprague Electric Co
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Filing: 1968-10-25
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Granted: 1971-06-15
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Expires: 1988-10-25
Abstract
Abstract A microstrip delay line is formed by etching a metal film to a highly- defined pattern, gold-plating the pattern and bonding the plated pattern onto a ceramic base.
Inventors
- 👤 David C Howe
- 👤 George A Senf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:58
CPC Classifications
H; H01; H01P; H01P9/00; H05; H05K; H05K1/00; H05K1/16; H05K1/165; H05K3/00; H05K3/02; H05K3/06; H05K3/061; H05K3/064; H05K3/10; H05K3/20; H05K3/202; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49128
Claims Analysis
Total Claims: 0
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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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |