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The ornamental design for a unipolar chamber for ionization smoke detector, as shown. |
FIG. 1 is a top plan view of a unipolar chamber for ionization smoke detector showing my new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is an elevational view thereof as seen from the right of FIG. 2;
FIG. 4 is an elevational view thereof as seen from the left of FIG. 2;
FIG. 5 is an elevational view thereof as seen from the side opposite that shown in FIG. 2.
The broken lines are shown for illustrative purposes only.
Patent | Priority | Assignee | Title |
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 17 1981 | HILTENBRAND, RICHARD E | Pittway Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 003913 | /0396 | |
Aug 24 1981 | Pittway Corporation | (assignment on the face of the patent) | / | |||
Jul 27 1992 | PITTWAY CORPORATION, A PA CORP , MERGED INTO AND WITH | Pittway Corporation | MERGER SEE DOCUMENT FOR DETAILS EFFECTIVE ON 12 28 1989DE | 006208 | /0358 |
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