US4612121A
Expired / Lapsed
US
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Separation material, methods of producing a separation material and use of orosomucoid, functional analogs thereto or derivatives or fragments thereof for separation purposes
Assignee: Chromtech AB
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Filing: 1984-05-23
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Granted: 1986-09-16
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Expires: 2004-05-23
Abstract
Abstract The invention relates to the use of orosomucoid, functional analogs thereto or derivatives or fragments thereof to produce separation materials.
Inventors
- 👤 Jorgen L. E. Hermansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:16
CPC Classifications
C; C07; C07B; C07B57/00; B; B01; B01D; B01D15/00; B01D15/08; B01D15/26; B01D15/38; B01D15/3804; B01D15/3809; B01D15/3833; B01J; B01J20/00; B01J20/30; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3214; B01J20/3217; B01J20/3219; B01J20/3231; B01J20/3242; B01J20/3268; B01J20/3272; B01J20/3274; B01J20/328; B01J20/3282
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
20 words
Method comprising chromatographically separating different substances by contacting said substance with α 1 -glycoprotein immobilized by covalent coupling on microparticles.
Claim 2
Dependent Claim
20 words
Method comprising chromatographically separating different substances by contacting said substance with α 1 -glycoprotein immobilized by covalent coupling on microparticles.
Claim 3
Dependent Claim
10 words
Method as claimed in claim 1 wherein enantiomers are separated.
Claim 4
Dependent Claim
23 words
Method comprising chromatographically separating different substances by contacting said substance with oxidized α 1 -acid glycoprotein immobilized by adsorption and crosslinking on microparticles.
Claim 5
Dependent Claim
23 words
Method comprising chromatographically separating different substances by contacting said substance with oxidized α 1 -acid glycoprotein immobilized by adsorption and crosslinking on microparticles.
Claim 6
Dependent Claim
10 words
Method as claimed in claim 3 wherein enantiomers are separated.
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) | 1989-09-15 | 1990-03-17 | 1990-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-15 | 1994-03-17 | 1994-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-15 | 1998-03-17 | 1998-09-16 | $7700.00 | Window Closed / Lapsed |