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PTO
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Patent
D374659
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Priority
Jul 12 1993
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Filed
Dec 02 1994
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Issued
Oct 15 1996
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Expiry
Oct 15 2010
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Assg.orig
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Entity
unknown
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4
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10
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n/a
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The ornamental design for an electret holder for a radon gas detector, as shown and described.
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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.
Ramsey, Jr., Robert W.
| Patent |
Priority |
Assignee |
Title |
| 3898464, |
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|
| 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, |
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| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a