Ball joint
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 25, 2000
Grant Date -
N/A
app pub date -
Nov 10, 1998
filing date -
Nov 11, 1997
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
A bearing seat slidably supports a ball head of a ball stud in a housing. Circumferentially spaced-apart load bearing ribs on the outer surface of the bearing seat facing the housing support the load placed on the joint. Auxiliary load bearing ribs, between adjacent ones of the load bearing ribs, extend from the surface of the ball joint seat slightly less farther than the load bearing ribs. The auxiliary load bearing ribs come into supportive contact with the housing when subjected to heavier loads, to prevent excessive stress flexure of the bearing seat. The ability of the ball joint to absorb repeated heavy load applications while maintaining friction compensation and a stable torque without stress cracking is improved. The ball joint has an improved ability to compensate for dimensional tolerances, which facilitates component manufacture. The load withstanding ability and the durability of the ball joint are thus improved without an increase in size or cost.
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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KABUSHIKI KAISHA SOMIC ISHIKAWA | SUMIDA-KU TOKYO 130-0004 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Mizutani, Masayuki | Hamamatsu, JP | 7 | 85 |
# of filed Patents : 7 Total Citations : 85 |
Cited Art Landscape
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Patent Citation Ranking
- 6 Citation Count
- F16C Class
- 2.39 % this patent is cited more than
- 25 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 |
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Aug 28, 2024 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Sep 03, 2020 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Mar 14, 2017 | I | Issuance | |
Feb 22, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 18, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:THE PILOT INK CO., LTD.;REEL/FRAME:035360/0152 Owner name: KABUSHIKI KAISHA PILOT CORPORATION (ALSO TRADING A Effective Date: Mar 18, 2015 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:THE PILOT INK CO., LTD.;REEL/FRAME:035360/0152 Owner name: THE PILOT INK CO., LTD., JAPAN Effective Date: Mar 18, 2015 |
Nov 27, 2008 | P | Published | |
May 21, 2008 | F | Filing | |
May 13, 2008 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WASE, TAKASHI;YASUDA, MICHIYUKI;OKAWARA, YOSHIAKI;REEL/FRAME:020975/0663 Owner name: THE PILOT INK CO., LTD., JAPAN Effective Date: May 13, 2008 |
May 22, 2007 | PD | Priority Date |

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