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Patent
D821321
Priority
Sep 07 2016
Filed
Sep 07 2016
Issued
Jun 26 2018
Expiry
Jun 26 2033
Assg.orig
Entity
unknown
3
13
n/a
The ornamental design for a blade for a vertical windmill , as shown and described.
FIG. 1 is a front elevational view of a blade for a vertical windmill showing our new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a cross sectional view taken along line 6 -6 in FIG. 1 ; and,
FIG. 7 is a front left perspective view thereof.
The partial design of the present invention is the portion delimited by the single-dot chain lines shown in FIGS. 1 to 4 and 7 .
The broken lines in FIGS. 1 to 4 and 7 , showing portions of the blade for a vertical windmill, form no part of the claimed design.
Mizutani, Masatoshi , Kawai, Tomoya
Patent
Priority
Assignee
Title
9103321 ,
Sep 13 2012
On or off grid vertical axis wind turbine and self contained rapid deployment autonomous battlefield robot recharging and forward operating base horizontal axis wind turbine
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EM1302798 ,
GB4022954 ,
GB4024872 ,
JP1376682 ,
JP2011169267 ,
JP2011169292 ,
JP2016169711 ,
JP2016176369 ,
JP2016205204 ,
Date
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