Centrifugal blower fan
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 8, 2006
Grant Date -
Dec 2, 2004
app pub date -
Apr 22, 2004
filing date -
Apr 25, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
It is the object of the present invention to provide a centrifugal blower fan capable of reducing a noise in an operating rotational speed range without degradation in blawer performance. A centrifugal blower fan comprises a base plate, and a plurality of fan blades arranged on the base plate in a radial pattern to define a plurality of air passages between the pairs of adjacent fan blades, respectively. A portion of the base plate serving as a bottom wall of each of the air passages is formed with a plurality of through-holes.
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 | |
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KIORITZ CORPORATION | 7-2 SUEHIROCHO 1-CHOME OHME TOKYO |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Iida, Giichi | Tokyo, JP | 34 | 634 |
# of filed Patents : 34 Total Citations : 634 | |||
Kamoshita, Tadashi | Nishi-Tokyo, JP | 9 | 106 |
# of filed Patents : 9 Total Citations : 106 |
Cited Art Landscape
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Patent Citation Ranking
- 16 Citation Count
- F04D Class
- 63.16 % this patent is cited more than
- 19 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
---|---|---|---|
Aug 12, 2013 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jul 14, 2013 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jul 14, 2013 |
Jul 14, 2013 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Feb 25, 2013 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Apr 03, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MCN BIOPRODUCTS INC.;REEL/FRAME:028256/0669 Owner name: BUNGE GLOBAL INNOVATION, LLC, NEW YORK Effective Date: Apr 03, 2012 |
Jul 14, 2009 | I | Issuance | |
Dec 06, 2008 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 07, 2008 | P | Published | |
Aug 07, 2006 | F | Filing | |
Aug 07, 2006 | PD | Priority Date | |
Aug 03, 2006 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YANG, HAINING;CHEN, XIANGDONG;REEL/FRAME:018079/0462 Owner name: INTERNATIONAL BUSINESS MACHINES CORPORATION, NEW Y Effective Date: Aug 03, 2006 |

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