Title:
Abacus
United States Patent D835716


Inventors:
Clifford, Megan (Wilton, NH, US)
Blackmer, Daniel (Wilton, NV, US)
Application Number:
29/610965
Publication Date:
12/11/2018
Filing Date:
07/18/2017
Assignee:
Clifford Megan
Blackmer Daniel
Primary Class:
Other Classes:
D18/6
International Classes:
(IPC1-7): 1907
Field of Search:
D19/59-64, D18/6, D18/9, D10/46.1
View Patent Images:
US Patent References:
D813306Counting device2018-03-20RuleD19/62
D812131Abacus2018-03-06LengdorferD18/6
20170236430Educational Toy Simulator2017-08-17Kalia434/159
20170102729MANUAL CALCULATING DEVICE2017-04-13Ylitalo
20070048708Motivational and educational enlarged abacus2007-03-01Lee434/236
D513762Abacus2006-01-24Young434/203
D504919Game rack2005-05-10Dinwiddie, Jr.D21/385
6315675Score counter for billiards game2001-11-13Ho235/68
D417405Score counterDecember, 1999TsaiD10/46.1
D330168Game apparatusOctober, 1992StoianD10/46.1
3829994CAR LOCATOR KEY HOLDER1974-08-20Dillon40/493
D198847N/AAugust, 1964MathisonD18/6
D136472N/AOctober, 1943HamlinD18/6



Foreign References:
DE3130114A11983-02-10Counting frame
Other References:
Facebook. Link: https://www.facebook.com/optimotus/. Jun. 22, 2018. AMRAP abacus. (Year: 2018).
Primary Examiner:
Simmons, Ian
Assistant Examiner:
Mcvey, Lauren D.
Attorney, Agent or Firm:
Figarella, Luis
Claims:
CLAIM

1. The ornamental design for an abacus, as shown and described.

Description:

FIG. 1 is a perspective view of an abacus showing our new design in a first position.

FIG. 2 is a op plan view in a second position.

FIG. 3 is a front side elevation view of FIG. 1.

FIG. 4 is a front side elevation view in a third position; and,

FIG. 5 is a side plan view thereof.