Folding knife
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Jan 15, 2009
app pub date -
Jul 10, 2007
filing date -
Jul 10, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
The invention discloses a folding knife having a knife handle and a blade. A pivotal shaft is at an end of the knife handle; a limit slot is inside the knife handle; and a latch element is in the limit slot. The blade is pivotally coupled to the knife handle through the pivotal shaft. The blade includes a protruding pillar corresponding to a latch portion. When the blade is stored into the knife handle, the protruding pillar is fixed between the limit slot and the latch element, and the blade will not pivot out of the knife handle due to shakes or vibrations. If a predetermined force is applied to rotate the blade towards the knife handle, the protruding pillar will rotate in conformity with the blade and push the latch element, so that the protruding pillar is released and rotated with the blade in the limit slot.
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 | |
---|---|---|
KAO CHIH-CHEN | Not Provided |
International Classification(s)

- 2007 Application Filing Year
- B26B Class
- 198 Applications Filed
- 133 Patents Issued To-Date
- 67.18 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kao, Chih-Chen | Taoyuan City, TW | 21 | 197 |
# of filed Patents : 21 Total Citations : 197 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 18 Citation Count
- B26B Class
- 56.63 % this patent is cited more than
- 16 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 |
---|---|---|---|
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

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