Patent US3314730A successfully refreshed from Google Patents.
US3314730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transportation of solids by pipeline
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1966-03-31
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Granted: 1967-04-18
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Expires: 1986-03-31
Abstract
No abstract record available.
Inventors
- 👤 Donald G Anderson
- 👤 Raymond H Pfrehm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:42
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
A METHOD FOR PUMPING PHOSPHATE WHICH COMPRISES: FORMING A STABLE SUSPENSION OF GRANULAR PHOSPHATE, FINELY DIVIDED KAOLINITIC MATERIAL, AND WATER HAVING A SOLIDS CONTENT WITHIN THE RANGE FROM ABOUT 49% TO ABOUT 60% BY WEIGHT AND CONTAINING FROM ABOUT 40% TO ABOUT 51% BY WEIGHT AND CONTAINING FROM ABOUT SAID SOLIDS CONTAINING FROM ABOUT 10% TO ABOUT 15% BY WEIGHT OF SAID KAOLINITIC MATERIAL AND FROM ABOUT 85% TO ABOUT 90% BY WEIGHT OF SAID GRANULAR PHOSPHATE; PUMPING SAID SUSPENSION THROUGH A PIPELINE; AND RECOVERING SAID SOLIDS FROM SAID SUSPENSION PUMPED THROUGH SAID PIPELINE.
Claim 2
Independent Claim
94 words
A METHOD FOR PUMPING PHOSPHATE WHICH COMPRISES: FORMING A STABLE SUSPENSION OF GRANULAR PHOSPHATE, FINELY DIVIDED KAOLINITIC MATERIAL, AND WATER HAVING A SOLIDS CONTENT WITHIN THE RANGE FROM ABOUT 49% TO ABOUT 60% BY WEIGHT AND CONTAINING FROM ABOUT 40% TO ABOUT 51% BY WEIGHT AND CONTAINING FROM ABOUT SAID SOLIDS CONTAINING FROM ABOUT 10% TO ABOUT 15% BY WEIGHT OF SAID KAOLINITIC MATERIAL AND FROM ABOUT 85% TO ABOUT 90% BY WEIGHT OF SAID GRANULAR PHOSPHATE; PUMPING SAID SUSPENSION THROUGH A PIPELINE; AND RECOVERING SAID SOLIDS FROM SAID SUSPENSION PUMPED THROUGH SAID PIPELINE.
Claim 3
Dependent Claim
75 words
A STABLE SUSPENSION SUITABLE FOR PUMPING THROUGH A PIPE WHICH COMPRISES: GRANULAR PHOSPHATE, FINELY DIVIDED KAOLINITIC MATERIAL AND WATER, SAID SUSPENSION HAVING A SOLIDS CONTENT WITHIN THE RANGE FROM ABOUT 49% TO ABOUT 60% BY WEIGHT AND CONTAINING FROM ABOUT 40% TO ABOUT 50% BY WEIGHT OF WATER; SAID SOLIDS CONTAINING FROM ABOUT 10% TO ABOUT 15% BY WEIGHT OF KAOLINITIC MATERIAL AND FROM ABOUT 85% TO ABOUT 90% BY WEIGHT OF SAID GRANULAR PHOSPHATE.
Claim 4
Dependent Claim
75 words
A STABLE SUSPENSION SUITABLE FOR PUMPING THROUGH A PIPE WHICH COMPRISES: GRANULAR PHOSPHATE, FINELY DIVIDED KAOLINITIC MATERIAL AND WATER, SAID SUSPENSION HAVING A SOLIDS CONTENT WITHIN THE RANGE FROM ABOUT 49% TO ABOUT 60% BY WEIGHT AND CONTAINING FROM ABOUT 40% TO ABOUT 50% BY WEIGHT OF WATER; SAID SOLIDS CONTAINING FROM ABOUT 10% TO ABOUT 15% BY WEIGHT OF KAOLINITIC MATERIAL AND FROM ABOUT 85% TO ABOUT 90% BY WEIGHT OF SAID GRANULAR PHOSPHATE.
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |