Patent US5146204A successfully refreshed from Google Patents.
Patent US2736611A successfully refreshed from Google Patents.
US2736611A
Expired / Lapsed
US
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Push type fluid conveyor
Assignee: ExxonMobil Oil Corp
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Filing: 1951-01-12
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Granted: 1956-02-28
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Expires: 1971-01-12
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Wesh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:21
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
APPARATUS FOR LIFTING PARTICLE-FORM SOLIDS COMPRISING ASCENDING AND DESCENDING LEGS, A SERIES OF LIFTING MEMBERS LOCATED IN SAID DESCENDING LEG, MEANS FOR FEEDING A LIFTING MEMBER TO THE REGION OF THE BOTTOM OF SAID ASCENDING LEG, MEANS FOR SUSPENDING THE PARTICLE-FORM SOLIDS IN THE REGION OF THE LOWER END OF THE ASCENDING LEG INCLUDING MEANS FOR FEEDING SUSPENDING GAS TO SAID ASCENDING LEG TO ASSIST IN CONVEYING SAID PARTICLE-FORM SOLIDS AND SAID LIFTING MEMBER FROM THE BOTTOM TO THE OF SAID ASCENDING LEG, MEANS FOR WITHDRAWING PARTICLE-FORM SOLIDS FROM THE TOP OF SAID ASCENDING LEG, MEANS FOR WITHDRAWING
Claim 2
Dependent Claim
98 words
APPARATUS FOR LIFTING PARTICLE-FORM SOLIDS COMPRISING ASCENDING AND DESCENDING LEGS, A SERIES OF LIFTING MEMBERS LOCATED IN SAID DESCENDING LEG, MEANS FOR FEEDING A LIFTING MEMBER TO THE REGION OF THE BOTTOM OF SAID ASCENDING LEG, MEANS FOR SUSPENDING THE PARTICLE-FORM SOLIDS IN THE REGION OF THE LOWER END OF THE ASCENDING LEG INCLUDING MEANS FOR FEEDING SUSPENDING GAS TO SAID ASCENDING LEG TO ASSIST IN CONVEYING SAID PARTICLE-FORM SOLIDS AND SAID LIFTING MEMBER FROM THE BOTTOM TO THE OF SAID ASCENDING LEG, MEANS FOR WITHDRAWING PARTICLE-FORM SOLIDS FROM THE TOP OF SAID ASCENDING LEG, MEANS FOR WITHDRAWING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |