US3110263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping and mixing devices for drilling mud
Assignee: Individual
•
Filing: 1960-05-05
•
Granted: 1963-11-12
•
Expires: 1980-05-05
Abstract
No abstract record available.
Inventors
- 👤 Thompson Lee Lavere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:12
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/06; E21B21/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US349582A
Cited
US1561694A
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US1712396A
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GB356019A
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US1938719A
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GB382550A
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US2413529A
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FR952812A
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US2693945A
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US2815714A
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US2711256A
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US2664052A
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US2827268A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |