Patent
   D271085
Priority
Apr 27 1981
Filed
Apr 27 1981
Issued
Oct 25 1983
Expiry
Oct 25 1997
Assg.orig
Entity
unknown
2
3
n/a
The ornamental design for a chromatographic on-column injector, as shown and described.

FIG. 1 is a front elevational view of a chromatographic capillary on-column injector, showing our new design, the rear elevational view being a mirror image thereof;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is an elevational view of the right-hand side thereof; and,

FIG. 5 is an elevational view of the left-hand side thereof.

Wohlers, Norman W., Jenkins, Rand G.

Patent Priority Assignee Title
D302397, Feb 28 1986 DIETERICH STANDARD, INC , A CORP OF DELAWARE Pitot tube type flow measurement device with a crank-operated insert/retract mechanism
D790725, May 03 2016 Claw support for chromatographic equipment
Patent Priority Assignee Title
D245482, Mar 26 1975 Aktiebolaget Atomenergi Pitot tube fitting
D251011, Nov 26 1976 Control Devices, Incorporated Combined air compressor tank manifold and valve
D266151, Feb 28 1980 Siemens Corporation Fraction collector for liquid chromatography
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 21 1981WOHLERS, NORMAN W J & W SCIENTIFIC INCORPORATEDASSIGNMENT OF ASSIGNORS INTEREST 0039530266 pdf
Apr 21 1981JENKINS, RAND G J & W SCIENTIFIC INCORPORATEDASSIGNMENT OF ASSIGNORS INTEREST 0039530266 pdf
Apr 27 1981J & W Scientific, Inc.(assignment on the face of the patent)
Aug 18 1988J W SCIENTIFIC INC , A CA CORP CURTIN MATHESON SCIENTIFIC, INC , A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST 0049410678 pdf
Oct 13 1995CURTIN MATHESON SCIENTIFIC, INC FISONS U S INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0077440441 pdf
Oct 13 1995FISIONS U S INC J&W Scientific IncorporatedASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0077440445 pdf
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