Car door hinge
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 19, 1995
Grant Date -
N/A
app pub date -
Nov 16, 1993
filing date -
Dec 11, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A car door hinge comprises a rotating member 2 hinged on a fixed member I by means of a hinge pin 3. One end 5 of a wire spring 4 is attached to a point on the rotating member 2 distant from the hinge pin, and the other end 8 of the wire spring 4 is attached to a point on the fixed member 1 inside a sector of a circle defined by the hinge pin 3 and an arc subtended at the hinge pin 3 which is described by the end 5 as the rotating member rotates. A spring restoring force therefore acts during the opening and closing of the door so that the door always opens and closes properly. Moreover, the spring occupies a minimum of space, and the rotation of the door is stopped at a predetermined angle.
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 | |
---|---|---|
MITSUBISHI STEEL MFG CO LTD | TOKYO 104-8550 |
International Classification(s)

- 1993 Application Filing Year
- E05F Class
- 119 Applications Filed
- 49 Patents Issued To-Date
- 41.18 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Asari, Tomoyuki | Okazaki, JP | 1 | 10 |
# of filed Patents : 1 Total Citations : 10 | |||
Kato, Kouichi | Sakura, JP | 42 | 307 |
# of filed Patents : 42 Total Citations : 307 | |||
Satoh, Motoyuki | Ichihara, JP | 2 | 20 |
# of filed Patents : 2 Total Citations : 20 | |||
Suzuki, Katsuo | Tokyo, JP | 14 | 255 |
# of filed Patents : 14 Total Citations : 255 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 10 Citation Count
- E05F Class
- 3.39 % this patent is cited more than
- 30 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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