Ceiling support box with outside air inlet
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 2, 2013
Issued Date -
N/A
app pub date -
Oct 26, 2009
filing date -
May 1, 2007
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
A ceiling support box is an interface for coupling two sections of pipe as part of a venting apparatus for a heating appliance. Dual functionality is provided in a single integrated device by having a vent path for exhausting combustion by-products, and a separate air inlet path to draw in combustion air for use by the heating appliance.
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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DURAVENT INC | GRAND PARK CENTRE BUILDING 28 WEST ADAMS SUITE 1810 DETROIT MI 48226 |
International Classification(s)

- 2009 Application Filing Year
- F24C Class
- 131 Applications Filed
- 85 Patents Issued To-Date
- 64.89 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Adair, Eric | Dixon, US | 11 | 62 |
# of filed Patents : 11 Total Citations : 62 | |||
Jacklich, John R | Napa, US | 13 | 122 |
# of filed Patents : 13 Total Citations : 122 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F24C Class
- 8.72 % this patent is cited more than
- 12 Age
Forward Cite Landscape
- No Forward Cites to Display

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 |
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