US2755938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid extracting apparatus
Assignee: Bowaters Development and Research Ltd
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Filing: 1954-11-12
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Granted: 1956-07-24
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Expires: 1974-11-12
Abstract
No abstract record available.
Inventors
- 👤 Alcock John Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:27
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/60; B; B01; B01D; B01D33/00; B01D33/06; B01D33/073; B01D33/09; D21F1/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
APPARATUS FOR EXTRACTING LIQUID FROM WET MATERIAL COMPRISING A PERFORATED ENDLESS CARRIER FOR SAID MATERIAL, MEANS TO PROVIDE A SUCTION ZONE IN COMMUNICATION WITH SAID CARRIER OVER WHICH SUCCESIVE PORTIONS OF SAID MAY PASS, MEANS FOR CAUSING SUCCESSIVE PORTIONS OF SAID CARRIER TO PASS OVER AND BEYOND SAID SUCTION ZONE, AND A PRESSURE EQUALIZING PASSAGE WHICH IS SEALED EXCEPT FOR OPEN ENDS OVER WHICH SUCCESSIVE PORTIONS OF SAID CARRIER PASS IN COMMUNICATION WITH SAID OPEN ENDS IMMEDIATELY BEFORE AND BEYOND SAID SUCTION ZONE.
Claim 2
Dependent Claim
83 words
APPARATUS FOR EXTRACTING LIQUID FROM WET MATERIAL COMPRISING A PERFORATED ENDLESS CARRIER FOR SAID MATERIAL, MEANS TO PROVIDE A SUCTION ZONE IN COMMUNICATION WITH SAID CARRIER OVER WHICH SUCCESIVE PORTIONS OF SAID MAY PASS, MEANS FOR CAUSING SUCCESSIVE PORTIONS OF SAID CARRIER TO PASS OVER AND BEYOND SAID SUCTION ZONE, AND A PRESSURE EQUALIZING PASSAGE WHICH IS SEALED EXCEPT FOR OPEN ENDS OVER WHICH SUCCESSIVE PORTIONS OF SAID CARRIER PASS IN COMMUNICATION WITH SAID OPEN ENDS IMMEDIATELY BEFORE AND BEYOND SAID SUCTION ZONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |