Patent
   D566298
Priority
Feb 16 2007
Filed
Feb 16 2007
Issued
Apr 08 2008
Expiry
Apr 08 2022
Assg.orig
Entity
unknown
3
5
n/a
The ornamental design of a stackable precast concrete stairwell unit, as shown and described.

FIG. 1 is a perspective view of a stackable precast concrete stairwell unit showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is an end view thereof, the opposite end view being the same;

FIG. 4 is a side view thereof;

FIG. 5 is an opposite side view thereof; and,

FIG. 6 is a cross-section view taken on the line 66 of FIG. 2.

Settles, David J., Griffin, James J., Bornhorst, Joseph A., Combs, Vincent, Rhoads, Benson T.

Patent Priority Assignee Title
9249566, Mar 26 2014 Stackable tower shaft wall stair unit and method
D640015, Feb 04 2010 Elevated bed and staircase for pets
D673299, May 04 2011 Half-step staircase structure
Patent Priority Assignee Title
3980155, Jun 24 1974 Fire escape
4248020, Jul 31 1978 Concordia University Precast concrete stairway module
6550197, Nov 22 1999 Methods and apparatus for a multi-story dwelling with attached garages
6922960, Jul 03 2001 Institute of International Environment; Renaizm Ltd. Multiple dwelling house
D270004, Mar 02 1981 Entrance staircase for mobile homes and the like
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 15 2007BORNHORST, JOSEPH A MILLER-VALENTINE CONSTRUCTION, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0191700718 pdf
Feb 15 2007COMBS, VINCENTMILLER-VALENTINE CONSTRUCTION, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0191700718 pdf
Feb 15 2007GRIFFIN, JAMES J MILLER-VALENTINE CONSTRUCTION, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0191700718 pdf
Feb 15 2007RHOADS, BENSON T MILLER-VALENTINE CONSTRUCTION, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0191700718 pdf
Feb 15 2007SETTLES, DAVID J MILLER-VALENTINE CONSTRUCTION, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0191700718 pdf
Feb 16 2007Miller-Valentine Construction LLC(assignment on the face of the patent)
Oct 31 2007MILLER-VALENTINE CONTRUCTION, LLCMV COMMERCIAL CONSTRUCTION LLCCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0208860965 pdf
Oct 20 2008MV COMMERCIAL CONSTRUCTION LLCMOD-U-CON LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0217440525 pdf
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