Patent US2522140A successfully refreshed from Google Patents.
US2522140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of breaking emulsions to recover wool fat
Assignee: Individual
•
Filing: 1946-04-29
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Granted: 1950-09-12
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Expires: 1966-04-29
Abstract
No abstract record available.
Inventors
- 👤 Shawcross Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:25
CPC Classifications
C; C11; C11B; C11B11/00; C11B11/005; B; B01; B01J; B01J39/00; B01J39/04; B01J39/05; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
THE METHOD OF RECOVERING WOOL GREASE FROM WOOL WASH WATER WHICH COMPRISES CONTACTING THE WOOL WASH WATER WITH PIECES OF A SOLID ION EXCHANGE MATERIAL COMPRISING AN INSOLUBLE, INFUSIBLE SULFONATED PHENOLIC RESIN IN ITS ACID FORM THEREBY BREAKING THE WASH WATER EMULSION AND DEPOSITING THE WOOL FAT ON THE PIECES OF ION EXCHANGE MATERIAL.
Claim 2
Independent Claim
54 words
THE METHOD OF RECOVERING WOOL GREASE FROM WOOL WASH WATER WHICH COMPRISES CONTACTING THE WOOL WASH WATER WITH PIECES OF A SOLID ION EXCHANGE MATERIAL COMPRISING AN INSOLUBLE, INFUSIBLE SULFONATED PHENOLIC RESIN IN ITS ACID FORM THEREBY BREAKING THE WASH WATER EMULSION AND DEPOSITING THE WOOL FAT ON THE PIECES OF ION EXCHANGE MATERIAL.
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) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |