Teaching device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 11, 2018
Grant Date -
Oct 27, 2016
app pub date -
Apr 20, 2016
filing date -
Apr 22, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Calculated Rating
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US Family Size
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Non-US Coverage
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Abstract
A teaching device includes a base and a first set of equipment. The first set of equipment includes a first rod portion including a first spiraling rod portion installed in the base. A first encircled object is disposed on the base plate and is encircled by the first spiraling rod portion. Also included is a first rod slider. The first rod slider is slidably movable along the first rod portion and around the first encircled object.
First Claim
Other Claims data not available
Family
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- No Family data available.
International Classification(s)
- 2016 Application Filing Year
- G09B Class
- 1804 Applications Filed
- 1083 Patents Issued To-Date
- 60.04 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G09B Class
- 39.63 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 11, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 11, 2030 |
