Flat tube and heat exchanger

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12140379
APP PUB NO 20220074670A1
SERIAL NO

17417390

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Some embodiments of the present disclosure provide a flat tube and a heat exchanger. The flat tube includes a middle tube segment and necking connection segments located at two ends of the middle tube segment, wherein a width of each of the necking connection segments is less than a width of the middle tube segment, a transition connection segment is provided between the each of the necking connection segments and the middle tube segment, and the transition connection segment is provided with a fastening and positioning part.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO LTD311835 DIANKOU INDUSTRIAL ZONE ZHUJI CITY SHAOXING CITY ZHEJIANG PROVINCE SHAOXING CITY ZHEJIANG PROVINCE 311835

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ma, Wenyong Zhejiang, CN 11 6
Wei, Wenjian Zhejiang, CN 29 39

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 May 12, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 May 12, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 12, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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