Patent US3153644A successfully refreshed from Google Patents.
Patent US3060950A successfully refreshed from Google Patents.
US3060950A
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Buffer vessel with controlled by-pass and method of operating same
Assignee: Shell USA Inc
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Filing: 1959-11-23
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Granted: 1962-10-30
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 Hijmans Dirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:03
CPC Classifications
G; G05; G05B; G05B6/00; G05B6/05; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/2496; Y10T137/2499; Y10T137/2501; Y10T137/2559; Y10T137/2562; Y10T137/8593; Y10T137/87265; Y10T137/87298; Y10T137/87306; Y10T137/87314
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2508170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |