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US2887955A
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Seismic mud pump
Assignee: Texas Instruments Inc
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Filing: 1954-06-29
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Granted: 1959-05-26
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Expires: 1974-06-29
Abstract
No abstract record available.
Inventors
- 👤 Alexander B Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:55
CPC Classifications
F; F01; F01L; F01L33/00; F01L33/04; F01L23/00; F04; F04B; F04B15/00; F04B15/02; F04B53/00; F04B53/08; F04B9/00; F04B9/08; F04B9/10; F04B9/109; F04B9/111; F04B9/113; Y; Y10; Y10S; Y10S417/00; Y10S417/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US896571A
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US1120015A
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US2124788A
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US2371704A
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US2393096A
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US2432079A
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DE810898C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |