US3480862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency-selective signal-transmission system with linearity-testing means
Assignee: Wandel and Golterman GmbH and Co
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Filing: 1967-06-20
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Granted: 1969-11-25
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Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 Herbert Bayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:09
CPC Classifications
G; G01; G01R; G01R23/00; G01R19/00; G01R19/0007; G01R23/16; G01R23/20; H; H04; H04B; H04B3/00; H04B3/02; H04B3/46; H04B3/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2666098A
Cited
US3018439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |