Electret holder for a radon gas detector

The ornamental design for an electret holder for a radon gas detector, as shown and described.

FIG. 1 is a side perspective view of our new design for an electret holder for a radon gas detector;

FIG. 2 is a side elevational view of our new design, the opposite side being identical; and,

FIG. 3 is a top plan view of our new design.

Patent	Priority	Assignee	Title
D471862,	Jul 31 2001	Matsushita Electric Industrial Co., Ltd.	Battery
D573537,	Sep 14 2007	HOPKINS MANUFACTURING CORPORATION	Electrical socket
D874302,	Mar 05 2018	AITHRE INC	Gas detector
D949724,	Jul 15 2021		Safely button
ER2661,
ER9854,

Patent	Priority	Assignee	Title
3898464,
4581536,	Mar 04 1983	Detector Electronics Corp.	Radiation detection tube having spurious radiation shield
4980550,	Oct 20 1989	Radiation Safety Services, Inc.	Radon measuring device
5132535,	May 21 1991		Track registration detector for radon concentrations
5134297,	May 09 1990	New York University; NEW YORK UNIVERSITY, A CORP OF NY	Personal gamma-ray and radon monitor
5324948,	Oct 27 1992	Energy, United States Department of	Autonomous mobile robot for radiologic surveys
D269858,	Feb 12 1981	Terradex Corp.	Compact radon detector unit
D318022,	Mar 02 1989	Rad Elec Inc.	Radon monitor
D327121,	Feb 14 1991	RAD ELEC, INC A CORPORATION OF DE	Small volume ion chamber
53911,

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Nov 21 1994	RAMSEY, ROBERT WILBUR, JR	Radon Testing Corporation of America	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	007256	0431	pdf
Dec 02 1994		Radon Testing Corporation of America	(assignment on the face of the patent)

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