US2774577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Homogenizers for oil well liquids
Assignee: Halliburton Oil Well Cementing Co
•
Filing: 1955-08-26
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Granted: 1956-12-18
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Expires: 1975-08-26
Abstract
No abstract record available.
Inventors
- 👤 Terry O Anderson
- 👤 James E Broaddus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:35
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/60; B01F27/625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2092992A
Cited
US2477929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |