Patent US3376977A successfully refreshed from Google Patents.
US3376977A
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US
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System for separating solids from an oil-water fluid mixture
Assignee: Texaco Inc
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Filing: 1964-12-21
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Granted: 1968-04-09
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Elliott F Gordon
- 👤 Merle W Brubaker
- 👤 Jr Charles B Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:20
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34; E21B43/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1919653A
Cited
US2093645A
Cited
US2754968A
Cited
US2757582A
Cited
US3064410A
Cited
US3273318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |