Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Scleroproteins – e.g. – fibroin – elastin – silk – etc.
Reexamination Certificate
2006-09-19
2006-09-19
Carlson, Karen Cochrane (Department: 1653)
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Scleroproteins, e.g., fibroin, elastin, silk, etc.
C530S423000, C530S427000, C514S021800
Reexamination Certificate
active
07109300
ABSTRACT:
A method is disclosed for extracting collagen from calcified tissue without a prior decalcification step. The method may be used with calcified tissues such as fish skin with scales, alligator skeletons, and crustacean exoskeletons. It does not require the use of EDTA. When fish skin is used that contains substantial quantities of scales, it is not necessary first to remove scales from the skin before conducting the extraction of collagen.
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Losso Jack N.
Ogawa Masahiro
Portier Ralph J.
Schexnayder Mark A.
Board of Supervisors of Louisiana State Univeristy And Agricultu
Carlson Karen Cochrane
Davis Bonnie J.
Porter Andr{acute over ())}{acute over (})} J.
Runnels John H.
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