Patent US3461385A successfully refreshed from Google Patents.
US3461385A
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US
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System for giving calibrated amplitude indications
Assignee: Wandel and Golterman GmbH and Co
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Filing: 1966-05-31
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Granted: 1969-08-12
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Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Herbert Bayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/46; H04B3/48; G; G01; G01R; G01R1/00; G01R1/28; G01R19/00; G01R19/0007; G01R19/10; G01R19/22
Claims Analysis
Total Claims: 0
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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) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |