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US3843446A Expired / Lapsed US ⏱️ 0.0 years remaining

Preparation of enzymatically active membranes

Assignee: Research Corp
•
Filing: 1971-04-20
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Granted: 1974-10-22
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Expires: 1991-04-20
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Abstract

Abstract 1. A PROCESS OF PRODUCING AN ENZYMATICALLY ACTIVE MEMBRANE WHICH COMPRISES SWELLING A MEMBRANCE FORMED FROM A PROTEIN SELECTED FROM THE GROUP CONSISTING OF COLLAGEN, ZEIN, CASEIN, OVALBUMIN, WHEAT GLUTEN, FIBRINOGEN, MYSOIN, AND MUCOPROTEIN, OR A POLYPEPTIDE SELECTED FROM THE GROUP CONSISTING OF POLYGLUTAMATE, POLYASPRTATE, POLYPHENYLAMINE, POLYTRYROSINE AND COPOLYMER OF LEUCINE AND P-AMINO PHENYLANALINE TO ITS MAXIMUM CAPACITY, AND SOAKING SAID SWOLLEN MEMBRANE IN AN AQUEOUS SOLUTION OF AN ENZYME AT A TEMPERATURE OF 4-10*C. FOR A PERIOD OF 10 HOURS TO 2 DAYS UNTIL SAID ENZYME COMPLEXES BY FORMING COMPLEXING GROUPS SELECTED FROM THE GROUP CONSISTING OF MULTIPLE HYDROGEN BONDS, SALT LINKAGES AND VAN DER WAALS INTERACTIONS WITH SAID MEMBRANE TO FORM AN ENZYME MAMBRANE COMPLEX, AND THEREAFTER DYING SAID ENZYMEMEMBRANE COMPLEX.

Inventors

  • 👤 S Gilbert
  • 👤 W Vieth
  • 👤 S Wang

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 17:00
CPC Classifications
C; C12; C12N; C12N11/00; C12N11/02; C12N1/00; C12N1/06; C12N11/08; C12N11/089; C12N11/098; C12N11/18; C12P; C12P19/00; C12P19/14; C12P19/24

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 122 words
A PROCESS OF PRODUCING AN ENZYMATICALLY ACTIVE MEMBRANE WHICH COMPRISES SWELLING A MEMBRANCE FORMED FROM A PROTEIN SELECTED FROM THE GROUP CONSISTING OF COLLAGEN, ZEIN, CASEIN, OVALBUMIN, WHEAT GLUTEN, FIBRINOGEN, MYSOIN, AND MUCOPROTEIN, OR A POLYPEPTIDE SELECTED FROM THE GROUP CONSISTING OF POLYGLUTAMATE, POLYASPRTATE, POLYPHENYLAMINE, POLYTRYROSINE AND COPOLYMER OF LEUCINE AND P-AMINO PHENYLANALINE TO ITS MAXIMUM CAPACITY, AND SOAKING SAID SWOLLEN MEMBRANE IN AN AQUEOUS SOLUTION OF AN ENZYME AT A TEMPERATURE OF 4-10*C. FOR A PERIOD OF 10 HOURS TO 2 DAYS UNTIL SAID ENZYME COMPLEXES BY FORMING COMPLEXING GROUPS SELECTED FROM THE GROUP CONSISTING OF MULTIPLE HYDROGEN BONDS, SALT LINKAGES AND VAN DER WAALS INTERACTIONS WITH SAID MEMBRANE TO FORM AN ENZYME MAMBRANE COMPLEX, AND THEREAFTER DYING SAID ENZYMEMEMBRANE COMPLEX.
Claim 2
Dependent Claim 122 words
A PROCESS OF PRODUCING AN ENZYMATICALLY ACTIVE MEMBRANE WHICH COMPRISES SWELLING A MEMBRANCE FORMED FROM A PROTEIN SELECTED FROM THE GROUP CONSISTING OF COLLAGEN, ZEIN, CASEIN, OVALBUMIN, WHEAT GLUTEN, FIBRINOGEN, MYSOIN, AND MUCOPROTEIN, OR A POLYPEPTIDE SELECTED FROM THE GROUP CONSISTING OF POLYGLUTAMATE, POLYASPRTATE, POLYPHENYLAMINE, POLYTRYROSINE AND COPOLYMER OF LEUCINE AND P-AMINO PHENYLANALINE TO ITS MAXIMUM CAPACITY, AND SOAKING SAID SWOLLEN MEMBRANE IN AN AQUEOUS SOLUTION OF AN ENZYME AT A TEMPERATURE OF 4-10*C. FOR A PERIOD OF 10 HOURS TO 2 DAYS UNTIL SAID ENZYME COMPLEXES BY FORMING COMPLEXING GROUPS SELECTED FROM THE GROUP CONSISTING OF MULTIPLE HYDROGEN BONDS, SALT LINKAGES AND VAN DER WAALS INTERACTIONS WITH SAID MEMBRANE TO FORM AN ENZYME MAMBRANE COMPLEX, AND THEREAFTER DYING SAID ENZYMEMEMBRANE COMPLEX.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-21 1978-04-22 1978-10-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-21 1982-04-22 1982-10-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-21 1986-04-22 1986-10-22 $7700.00 Window Closed / Lapsed

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