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Patent
D556315
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Priority
Apr 19 2006
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Filed
Apr 19 2006
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Issued
Nov 27 2007
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Expiry
Nov 27 2021
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Assg.orig
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Entity
unknown
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4
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40
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n/a
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The ornamental design for a crawlspace periscope air vent, as shown.
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FIG. 1 is a front right isometric view of a crawlspace periscope air vent showing my new design;
FIG. 2 is a front plan view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side plan view thereof;
FIG. 6 is a left side plan view thereof; and,
FIG. 7 is a back plan view.
Sykes, William G., Jackson, James S
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Jul 07 1986 |
COY THOMAS ALLRED |
Ventilating apparatus for building foundations in both brick and siding type structures |
| 4739524, |
May 01 1986 |
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Double weep hole drain and method |
| 4821628, |
Jan 19 1988 |
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Shallow-profile foundation ventilator |
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Aug 30 1989 |
Radon Home Products, Inc. |
Method and apparatus for sub-floor collection and disposal of radon gas |
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Dec 02 1991 |
3186199 CANADA LIMITED |
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Jul 06 1982 |
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Garbage disposal strainer and splash guard |
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May 12 2004 |
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Foundation vent |
| D520133, |
May 12 2004 |
|
Foundation vent |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a