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Patent
D591778
Priority
Apr 29 2005
Filed
Aug 30 2007
Issued
May 05 2009
Expiry
May 05 2023
Assg.orig
Entity
unknown
8
26
n/a
The ornamental design for the refractory block, as shown as described.
FIG. 1 is a front, perspective view of a refractory block showing our new design;
FIG. 2 is a back, perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a right side view thereof, the left side being a mirror image thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a back view thereof; and,
FIG. 7 is a bottom view thereof, the separation and bracket shown in FIGS. 1 , 2 , 4 , 5 and 7 indicating that the depth of the refractory block from the front face may vary.
Stephansky, John J. , Berry, John E.
Patent
Priority
Assignee
Title
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Rothbury International Inc.
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BRAMPTON BRICK LIMITED BRIQUE BRAMPTON LIMITEE
Retaining wall block
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A P GREEN REFRACTORIES, INC
Refractory block
Executed on Assignor Assignee Conveyance Frame Reel Doc
Apr 25 2005 BERRY, JOHN E Harbison-Walker Refractories Company ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 063682 /0932
pdf
Apr 25 2005 STEPHANSKY, JOHN J Harbison-Walker Refractories Company ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 063682 /0932
pdf
Aug 30 2007 Harbison-Walker Refractories Company (assignment on the face of the patent) /
Dec 23 2015 Harbison-Walker Refractories Company APGI, LLC MERGER SEE DOCUMENT FOR DETAILS 063683 /0631
pdf
Dec 30 2015 A P GREEN REFRACTORIES, INC HARBISONWALKER INTERNATIONAL, INC CHANGE OF NAME SEE DOCUMENT FOR DETAILS 063692 /0624
pdf
Dec 31 2015 APGI, LLC A P GREEN REFRACTORIES, INC MERGER SEE DOCUMENT FOR DETAILS 063683 /0767
pdf
May 24 2023 HARBISONWALKER INTERNATIONAL, INC THE BANK OF NEW YORK MELLON TRUST COMPANY, N A NOTES PATENT SECURITY AGREEMENT 063784 /0481
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May 24 2023 HARBISONWALKER INTERNATIONAL, INC BNP PARIBAS BNPP PATENT SECURITY AGREEMENT 063784 /0283
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May 24 2023 HARBISONWALKER INTERNATIONAL HOLDINGS, INC BNP PARIBAS BNPP PATENT SECURITY AGREEMENT 063784 /0283
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May 24 2023 HARBISONWALKER INTERNATIONAL MINERALS, INC JPMORGAN CHASE BANK, N A SECURITY AGREEMENT 063783 /0851
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May 24 2023 HARBISONWALKER INTERNATIONAL HOLDINGS, INC JPMORGAN CHASE BANK, N A SECURITY AGREEMENT 063783 /0851
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May 24 2023 HARBISONWALKER INTERNATIONAL MINERALS, INC BNP PARIBAS BNPP PATENT SECURITY AGREEMENT 063784 /0283
pdf
May 24 2023 HARBISONWALKER INTERNATIONAL MINERALS, INC THE BANK OF NEW YORK MELLON TRUST COMPANY, N A NOTES PATENT SECURITY AGREEMENT 063784 /0481
pdf
May 24 2023 HARBISONWALKER INTERNATIONAL HOLDINGS, INC THE BANK OF NEW YORK MELLON TRUST COMPANY, N A NOTES PATENT SECURITY AGREEMENT 063784 /0481
pdf
May 24 2023 HARBISONWALKER INTERNATIONAL, INC JPMORGAN CHASE BANK, N A SECURITY AGREEMENT 063783 /0851
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