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Patent
D966033
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Priority
May 04 2018
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Filed
Feb 10 2022
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Issued
Oct 11 2022
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Expiry
Oct 11 2037
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Assg.orig
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Entity
unknown
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1
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20
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n/a
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The ornamental design for a screw shaft element, as shown and described.
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FIG. 1 is a perspective view of the first embodiment of the screw shaft element showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left view thereof;
FIG. 5 is a right view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a perspective view of a the second embodiment of the screw shaft element showing our new design;
FIG. 9 is a front view thereof;
FIG. 10 is a back view thereof;
FIG. 11 is a left view thereof;
FIG. 12 is a right view thereof;
FIG. 13 is a top view thereof; and,
FIG. 14 is a bottom view thereof.
The broken lines in the drawings illustrate portions of the screw shaft element and form no part of the claimed design.
Walter, Wolfgang, Schötzau, Martin
Patent |
Priority |
Assignee |
Title |
11779891, |
Oct 17 2017 |
Buss AG |
Asymmetrical three-blade screw-type shaft for a mixing and kneading machine |
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Tent stake |
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Buss AG |
Screw shaft element |
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 16 2018 | WALTER, WOLFGANG | Buss AG | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 059011 | /0023 |
pdf |
Nov 16 2018 | SCHÖTZAU, MARTIN | Buss AG | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 059011 | /0023 |
pdf |
Feb 10 2022 | | Buss AG | (assignment on the face of the patent) | | / |
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Maintenance Fee Events |
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Maintenance Schedule |
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