Patent
   D327121
Priority
Feb 14 1991
Filed
Feb 14 1991
Issued
Jun 16 1992
Expiry
Jun 16 2006
Assg.orig
Entity
unknown
2
8
n/a
The ornamental design for a small volume ion chamber, as shown and described.

FIG. 1 is a top, front perspective view of a small volume ion chamber showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear and side views being identical thereto; and,

FIG. 4 is a bottom plan view thereof.

Kotrappa, Payasada, Ramsey, Jr., Robert W.

Patent Priority Assignee Title
D374659, Jul 12 1993 Radon Testing Corporation of America Electret holder for a radon gas detector
D552723, Dec 21 2005 DAINIHON JOCHUGIKU CO , LTD Chemical vaporizer
Patent Priority Assignee Title
106187,
D265924, Mar 06 1980 Ion Systems, Inc. Air ionizer
D272086, Jul 10 1981 Ion Systems, Inc. Combined air ionizer and cleaner
D278603, Mar 18 1983 PROCTER & GAMBLE COMPANY, THE, A CORP OF OH Container cap
D314514, May 13 1987 Ecolab USA Inc Draining lid
82978,
83901,
91651,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 14 1991Rad Elec, Inc.(assignment on the face of the patent)
Jun 25 1991KOTRAPPA, PAYASADARAD ELEC, INC A CORPORATION OF DEASSIGNMENT OF ASSIGNORS INTEREST 0057840308 pdf
Aug 01 1991RAMSEY, ROBERT W , JR RAD ELEC, INC A CORPORATION OF DEASSIGNMENT OF ASSIGNORS INTEREST 0057840306 pdf
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