Device for early teaching of mathematics
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 27, 2016
Grant Date -
Nov 6, 2014
app pub date -
May 6, 2013
filing date -
May 6, 2013
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A device for visual and tactile learning in mathematics. A set is comprised of twenty-two individual clear, square counters; eleven male (11) and eleven female (12), each set numbered respectively zero through ten. Raised numbers, and dots provide a learning platform for number recognition and counting. Raised addition and equals symbols provide a platform for learning addition and subtraction. Addition can be achieved by drawing the two counters together in a locking process. Subtraction can be achieved by stacking and locking the female counter (12) over the male counter (11).
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KELLY ANDREW DAVID | Not Provided |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kelly, Andrew David | Bristow, US | 2 | 3 |
# of filed Patents : 2 Total Citations : 3 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 2 Citation Count
- G09B Class
- 19.28 % this patent is cited more than
- 9 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 27, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Nov 16, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
May 22, 2018 | I | Issuance | |
May 02, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jul 14, 2016 | P | Published | |
Feb 15, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SUGIYAMA, SHINJI;REEL/FRAME:037892/0123 Owner name: TS TECH CO., LTD., JAPAN Effective Date: Feb 15, 2016 |
Sep 05, 2014 | F | Filing | |
Sep 05, 2013 | PD | Priority Date |

Matter Detail

Renewals Detail
