Geometrical instruments – Straightedge type – Square and sliding nonpivotal straightedge
Reexamination Certificate
2011-06-07
2011-06-07
Johnson, Amy Cohen (Department: 2841)
Geometrical instruments
Straightedge type
Square and sliding nonpivotal straightedge
C033S562000, C033S476000
Reexamination Certificate
active
07954249
ABSTRACT:
A template guide which performs and simplifies the task of layout for stair stringers. This accomplishment has previously been made by the use of multiple tools including the framing square, multipurpose square, and speed square as well as others. The said template of the present invention features an adjustable riser that can be secured for the exact dimension of any rise calculated to be between 6″ and 7¾″. The said template of the present invention also features an adjustable tread that can be secured for the exact dimension of any tread length, calculated to be between 9¼″ and 11⅛″. The said template is configured as such to accommodate the unskilled craftsman as well as the experienced tradesman.
REFERENCES:
patent: 164008 (1875-06-01), Kirkpatrick
patent: 341126 (1886-05-01), Boyer
patent: 493048 (1893-03-01), Van Alstine
patent: 539534 (1895-05-01), McKinny
patent: 796030 (1905-08-01), Baumgartner
patent: 858431 (1907-07-01), Wiegmann
patent: 947422 (1910-01-01), Sherry
patent: 1527647 (1925-02-01), Heinen
patent: 3478434 (1969-11-01), Catalano
patent: 4742619 (1988-05-01), Swanson
patent: 4833791 (1989-05-01), Campbell
patent: 4882846 (1989-11-01), Reed
patent: 5388340 (1995-02-01), Marty
patent: 5440818 (1995-08-01), Mailhot
patent: 5692357 (1997-12-01), McCain
patent: 5727325 (1998-03-01), Mussell
patent: 6260283 (2001-07-01), Abernathy et al.
patent: 7627955 (2009-12-01), Perkey
Cohen Johnson Amy
E-Z Riser, Inc.
LandOfFree
E-Z riser stair guide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with E-Z riser stair guide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and E-Z riser stair guide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2618889