Patent US3328892A successfully refreshed from Google Patents.
US3328892A
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Process for deswelling a water-swollen, highly hydrophylic gel fiber
Assignee: EIDP Inc
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Filing: 1966-05-04
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Granted: 1967-07-04
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Expires: 1986-05-04
Abstract
No abstract record available.
Inventors
- 👤 Man Eugene Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:40
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/155; A; A61; A61F; A61F13/00; A61F13/15; A61F13/15203; A61F13/15211; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/28; D01; D01F; D01F11/00; D01F11/02; D01F2/00; D01F2/06; D01F2/08; A61F13/53; A61F2013/530481; A61F13/84; A61F2013/8488
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR DESWELLING A WATER-SWOLLEN, HIGHLY HYDROPHYLIC GEL FIBER WHICH COMPRISES (1) INTIMATELY CONTACTING THE SAID SWOLLEN FIBER WITH AN AQUEOUS CONCENTRATED SOLUTION OF A SALT FROM THE CLASS CONSISTING OF MAGNESIUM CHLORIDE, MAGNESIUM ACETATE, AN ALKALI METAL ACETATE AND A SALT OF A MULTIVALENT ANION WITH A CATION FROM THE CLASS CONSISTING OF MAGNESIUM, AMMONIUM AND AN ALKALI METAL, (2) REMOVING EXCESS SALT SOLUTION AND (3) DRYING BY REMOVAL OF WATER.
Claim 2
Dependent Claim
73 words
A PROCESS FOR DESWELLING A WATER-SWOLLEN, HIGHLY HYDROPHYLIC GEL FIBER WHICH COMPRISES (1) INTIMATELY CONTACTING THE SAID SWOLLEN FIBER WITH AN AQUEOUS CONCENTRATED SOLUTION OF A SALT FROM THE CLASS CONSISTING OF MAGNESIUM CHLORIDE, MAGNESIUM ACETATE, AN ALKALI METAL ACETATE AND A SALT OF A MULTIVALENT ANION WITH A CATION FROM THE CLASS CONSISTING OF MAGNESIUM, AMMONIUM AND AN ALKALI METAL, (2) REMOVING EXCESS SALT SOLUTION AND (3) DRYING BY REMOVAL OF WATER.
References Cited (Backward Citations)
US2824779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |