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Patent
   D259406
Priority
Dec 20 1978
Filed
Dec 20 1978
Issued
Jun 02 1981
Expiry
Jun 02 1995
Inventors
Jacobson, …
Assg.orig
Radiation …
Assg.curr
PHYSCIS AS…
Entity
unknown
Referenced by
2
References
8
Maint.:
n/a
The ornamental design for a collimator test target, as shown and described.

FIG. 1 is a front elevation view of a collimator test target showing my new design.

FIG. 2 is a bottom plan view thereof, the top being identical thereto;

FIG. 3 is a rear elevation view thereof; and

FIG. 4 is a right side elevation view thereof, the left side being identical thereto.
INVENTORS:

Jacobson, Donald R.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D283494, Dec 27 1983 Radio signal controlled laser beam interrupting ditch slope indicator
ER687,
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1626306,
3028493,
3419329,
3614238,
3917954,
3920335,
4090080, Jan 06 1976 Galileo Electro-Optics Corp. Imaging
203518,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 20 1978Radiation Measurements, Inc.(assignment on the face of the patent)
Apr 08 1987RADIATION MEASUREMENTS, INC , A WI CORP PHYSICS ASSOCIATES, LTD , A CORP OF WIASSIGNMENT OF ASSIGNORS INTEREST 0046970700 pdf
May 11 1987PHYSICS ASSOCIATES, LTD ,PHYSCIS ASSOCIATES, LTD , MILWAUKEE COUNTY, WISCONSIN A WISCONSIN CORP CHANGE OF NAME SEE DOCUMENT FOR DETAILS FILE 5-14-870048770990 pdf
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