Patent US3514759A successfully refreshed from Google Patents.
US3514759A
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US
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Controlled gain playback loop for data aquisition system
Assignee: Western Atlas International Inc
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Filing: 1967-06-16
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Granted: 1970-05-26
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Expires: 1987-06-16
Abstract
No abstract record available.
Inventors
- 👤 Kenji Watanabe
- 👤 Ralph D Hasenbalg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:27
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; G01V1/245; H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3005; H03G3/3026
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) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |