US2512096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mud mixing device
Assignee: Individual
•
Filing: 1947-12-06
•
Granted: 1950-06-20
•
Expires: 1967-12-06
Abstract
No abstract record available.
Inventors
- 👤 William H Endsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:35
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/06; E21B21/062; B; B01; B01F; B01F35/00; B01F35/71; B01F35/717; B01F35/7173; B01F35/71731
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1142841A
Cited
US1486883A
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US1778501A
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US1879269A
Cited
US2096174A
Cited
US2198524A
Cited
US2338174A
Cited
US2423801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |