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Patent
   D244494
Priority
Feb 23 1968
Filed
Jan 12 1970
Issued
May 31 1977
Expiry
May 31 1991
Inventors
Dottinger,…
Assg.orig
Litton Bus…
Assg.curr
SECURITY P…
Entity
unknown
Referenced by
17
References
1
Maint.:
n/a
The ornamental design for a step-stool, as shown.

FIG. 1 is a perspective view of a step-stool embodying my new design;

FIG. 2 is an elevational view of the step-stool of FIG. 1; and

FIG. 3 is a top view of the step-stool of FIG. 1.
INVENTORS:

Dottinger, Robert J.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
11382432, Sep 13 2019 Elbee Pty Ltd Step stool with tread
D268148, Sep 04 1980 Mel, Appel Combination chair and stepstool
D354210, Dec 09 1993 Continental Commercial Products, LLC Two-step tool box
D360664, Mar 29 1994 FIRM MEDIA, LLC Step for aerobic exercise
D376909, Dec 27 1995 Continental Commercial Products, LLC Tool box
D413989, Dec 18 1998 Stackable step
D524069, Feb 16 2005 Seville Classics, Inc. Step stool
D566408, Mar 29 2006 Cramer LLC Step stool
D566977, Mar 27 2006 Cramer LLC Step stool
D566978, Mar 29 2006 Cramer LLC Step stool
D570125, Mar 27 2006 Cramer LLC Step stool
D606768, Aug 07 2009 Bei Yu Industrial Co. Step stool
D625931, Feb 03 2010 A Real Cool World Aps Stool
D640878, Feb 16 2011 Wheeled step stool
D650185, Mar 31 2011 Hsiang Fu Chia Enterprise Co., Ltd. Step stool
D650600, Mar 31 2011 Hsiang Fu Chia Enterprise Co., Ltd. Step stool
D959159, Mar 28 2020 Footstool
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
216508,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 12 1970Litton Business Systems, Inc.(assignment on the face of the patent)
May 22 1984LITTON BUSINESS SYSTEMS, INC , A NY CORP JOYCE INTERNATIONAL, INC A CORP OF DEASSIGNMENT OF ASSIGNORS INTEREST 0042850245 pdf
May 25 1984JOYCE INTERNATIONAL, INC , A DE CORP SECURITY PACIFIC BUSINESS CREDIT INC , A DE CORPCONDITIONAL ASSIGNMENT SEE DOCUMENT FOR DETAILS 0043110487 pdf
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