Air diffusion device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 14, 2017
Grant Date -
Sep 3, 2015
app pub date -
Nov 6, 2013
filing date -
Nov 19, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
|
US Family Size
|
Non-US Coverage
|
|
Patent Longevity
|
Forward Citations
|
Abstract
An air diffusion device is provided. The device includes a base coupled to an air supply pipe for supply of air. The base has an air discharge hole for discharge of air supplied from the air supply pipe. The device further includes a perforated cover in the form of a multi-layered stepped plate the height of which is reduced stepwise from the center to the edge. The perforated cover has a plurality of through-holes for discharge of air, and it is coupled to an upper surface of the base to cover the air discharge hole, thus defining an air guide chamber between the perforated cover and the base. The device further includes a securing mechanism configured to secure the perforated cover to the base.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| KR | B1 | KR101246835 | Nov 19, 2012 |
| KR | B1 | KR101266507 | Nov 19, 2012 |
| CN | B | CN103974913 | Nov 06, 2013 |
| WO | A1 | WO2014077542 | Nov 06, 2013 |
International Classification(s)
- 2013 Application Filing Year
- B01F Class
- 825 Applications Filed
- 744 Patents Issued To-Date
- 90.19 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- B01F Class
- 30.06 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 14, 2028 |
