METHOD OF ASSEMBLING CAPTIVE SCREW
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Aug 28, 2009
filing date -
Jan 30, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for assembling captive screw includes the steps of providing an annular base and positioning an annular washer on a top of the annular base; providing a screw, a coil spring, and a sleeve; downward passing the screw through the coil spring and a top opening of the sleeve; and threading a threaded section of the screw through the annular washer, so that the annular washer is fitted around a shank of the screw to locate below the top opening of the sleeve and above the threaded section of the screw. An inner circumferential edge of the annular washer is not worn away by the threaded section of the screw threaded therethrough, enabling the annular washer to keep a small inner diameter for tightly fitting around the shank of the screw and ensuring reliable assembling of the sleeve to the screw.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
FIVETECH TECHNOLOGY INC | 3F -3 NO 129 LN 235 BAOCIAO RD SINDIAN DIST NEW TAIPEI CITY |
International Classification(s)

- 2009 Application Filing Year
- B23P Class
- 2521 Applications Filed
- 471 Patents Issued To-Date
- 18.69 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Wang, Ting-Jui | Sindian City , TW | 228 | 318 |
# of filed Patents : 228 Total Citations : 318 | |||
Wu, Ming-De | Sindian City , TW | 40 | 122 |
# of filed Patents : 40 Total Citations : 122 |
Cited Art Landscape
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Patent Citation Ranking
- 6 Citation Count
- B23P Class
- 6.54 % 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 |
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