US3606483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurrying of sulfur in liquid carrier
Assignee: Shell USA Inc
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Filing: 1969-04-28
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Granted: 1971-09-20
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Expires: 1989-04-28
Abstract
Abstract AN IMPROVED METHOD OF TRANSPORTING SULFUR-LIQUID HYDROCARBON SLURRIES THROUGH PIPELINES WITHOUT CAUSING SULFUR AGGLOMERATION, STICKING, DEPOSITION OR PLUGGING OF THE PIPELINE.
Inventors
- 👤 Charles M Gable
- 👤 Ernest R Freitas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:26
CPC Classifications
F; F17; F17D; F17D1/00; F17D1/08; F17D1/084; B; B65; B65G; B65G53/00; B65G53/30; C; C01; C01B; C01B17/00; C01B17/02; F17D1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |