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Patent
   D309498
Priority
Aug 20 1987
Filed
Aug 20 1987
Issued
Jul 24 1990
Expiry
Jul 24 2004
Inventors
Colvin, Jr…
Assg.orig
Cerex Corp…
Assg.curr
Cerex Corp…
Entity
unknown
Referenced by
2
References
2
Maint.:
n/a
The ornamental design for a chromatography column closure or similar article, as shown and described.

FIG. 1 is a bottom perspective view of a chromatography column closure or similar article showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view thereof; and

FIG. 4 is a top plan view thereof.
INVENTORS:

Colvin, Jr., Arthur E.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
5324426, Mar 20 1992 Kontes Glass Corp. Chromatography column
D827151, Aug 29 2016 HITACHI HIGH-TECH CORPORATION Column end cap
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
4582608, Feb 15 1985 Varian, Inc HPLC column
4737292, Jun 05 1986 Varian, Inc HPLC column and a column packing method
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Aug 20 1987Cerex Corporation(assignment on the face of the patent)
Sep 23 1987COLVIN, ARTHUR E JR Cerex CorporationASSIGNMENT OF ASSIGNORS INTEREST 0047620391 pdf
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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