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US3534401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer for well logging system
Assignee: Western Atlas International Inc
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Filing: 1966-04-20
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Granted: 1970-10-13
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Expires: 1986-04-20
Abstract
No abstract record available.
Inventors
- 👤 Paul H Karvellas
- 👤 Eric C Hopkinson
- 👤 Francis J Niven Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:16
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/101; G01V5/102; G06G7/54
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) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |