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Patent
   D250810
Priority
Jun 02 1977
Filed
Jun 02 1977
Issued
Jan 16 1979
Expiry
Jan 16 1993
Inventors
Stern, Dav…
Assg.orig
The Baltim…
Assg.curr
BALTIMORE …
Entity
unknown
Referenced by
6
References
6
Maint.:
n/a
The ornamental design for a colorimeter, substantially as shown and described.

FIG. 1 is a front and top left perspective view of a colorimeter showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof.
INVENTORS:

Stern, David L.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D256785, Oct 12 1976 Gas analyzer
D261623, Aug 03 1979 Miles Laboratories, Inc. Reflectance colorimeter
D282644, Jun 08 1983 Miles Laboratories, Inc. Reflectance colorimeter
D282724, Sep 13 1983 Miles Laboratories, Inc. Spectro photometer
D283107, Jul 29 1983 Miles Laboratories, Inc. Reflectance photometer
D950081, Apr 26 2019 Device casing with color coded power setting buttons and two probe holding connectors
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3026182,
3441352,
3565535,
3676007,
221994,
241042,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 02 1977The Baltimore Spice Company(assignment on the face of the patent)
May 31 1985BALTIMORE SPICE COMPANY, THESCM CorporationASSIGNMENT OF ASSIGNORS INTEREST 0047630014 pdf
Aug 04 1987SCM CorporationBALTIMORE SPICE INC ASSIGNMENT OF ASSIGNORS INTEREST 0047640567 pdf
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