The ornamental design for a culturevessel, as shown and described.
1.-3. Culture vessels
1.1 : Top perspective view
1.2 : Bottom perspective view
1.3 : Front
1.4 : Back
1.5 : Top
1.6 : Bottom
1.7 : Left
1.8 : Right
1.9 : Sectional view
1.10 : Reference view
2.1 : Top perspective view
2.2 : Bottom perspective view
2.3 : Front
2.4 : Back
2.5 : Top
2.6 : Bottom
2.7 : Left
2.8 : Right
2.9 : Sectional view
2.10 : Reference view
3.1 : Top perspective view
3.2 : Bottom perspective view
3.3 : Front
3.4 : Back
3.5 : Top
3.6 : Bottom
3.7 : Left
3.8 : Right
3.9 : Sectional view
3.10 : Reference view
Designs 1, 2 and 3: these articles are culture vessels used in culture apparatus for culturing cells such as those of animals and plants; the parts shown as solid lines are parts for which design registration is sought; the broken lines depict environmental subject matter only, and form no part of the claimed designs; lines consisting of alternating long and short dashes in the drawings are used to distinguish the inventive design claimed herein from unclaimed parts; these articles are transparent; the surfaces of these articles are transparent surfaces through which objects on the other side of such transparent surfaces are distinctly seen; the diagonal surface shading lines indicate that the surfaces of the claimed designs are transparent; the inside surfaces shown as solid lines may be seen through the outside surfaces that form no part of the claimed design because the outside surfaces are transparent; design 1: reproduction 1.9 is a cross-sectional view through the center of reproduction 1.3; reproduction 1.10 is a reference sectional view showing state in use; Design 2: reproduction 2.9 is a cross-sectional view through the center of reproduction 2.3; reproduction 2.10 is a reference sectional view showing state in use; design 3: reproduction 3.9 is a cross-sectional view through the center of reproduction 3.3; reproduction 3.10 is a reference sectional view showing state in use.