Airtight adapter and a replacement method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 2, 2001
Grant Date -
N/A
app pub date -
Feb 10, 1999
filing date -
Feb 10, 1998
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
An airtight adapter to be mounted to an airtight unit requiring airtightness, e.g. a glove box, with which it is possible to easily replace a part of the airtight adapter while maintaining airtightness. The adapter has an outer-cylinder adapter body, an internal adapter body inserted into and fitted in the outer-cylinder adapter body and at least two annular sealing members positioned between the internal adapter body and the outer-cylinder adapter body. By determining a length of the outer-cylinder adapter body and positions of the sealing members, the internal adapter body can be easily, airtightly replaced by bringing a spare internal adapter body into contact with the already-fitted internal adapter body at the outside of the airtight unit; pushing and inserting the spare internal adapter body into the cylinder of the outer-cylinder adapter body while moving the already-fitted internal adapter body toward the inside of the airtight unit; securing the spare internal adapter body at a predetermined position in the cylinder of the outer-cylinder adapter body.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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JP | B2 | JP3002966 | Feb 10, 1998 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PUBLISHED GRANTED PATENT (SECOND LEVEL) | AIRTIGHT ADAPTER AND ITS CHANGING METHOD | Jan 24, 2000 | |||
EP | B1 | EP0940818 | Feb 08, 1999 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
Patent | An airtight adapter and method for replacing the same | May 02, 2002 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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JAPAN NUCLEAR CYCLE DEVELOPMENT INSTITUTE | NAKA-GUN IBARAKI-KEN |
International Classification(s)

- 1999 Application Filing Year
- F16L Class
- 850 Applications Filed
- 392 Patents Issued To-Date
- 46.12 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Endo, Kazunobu | Utsunomiya, JP | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
Kato, Yoshiyuki | Naka-gun, JP | 117 | 1632 |
# of filed Patents : 117 Total Citations : 1632 | |||
Kurita, Tsutomu | Hitachinaka, JP | 11 | 163 |
# of filed Patents : 11 Total Citations : 163 | |||
Toriya, Tomoaki | Yotsukaido, JP | 8 | 60 |
# of filed Patents : 8 Total Citations : 60 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- F16L Class
- 0 % this patent is cited more than
- 24 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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Oct 28, 2013 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 02, 2013 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 02, 2013 |
Oct 02, 2013 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
May 10, 2013 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 01, 2009 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Mar 12, 2009 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Mar 29, 2005 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Oct 02, 2001 | I | Issuance | |
Feb 10, 1999 | F | Filing | |
Jan 25, 1999 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ENDO, KAZUNOBU;TORIYA, TOMOAKI;KURITA, TSUTOMU;AND OTHERS;REEL/FRAME:011720/0927 Owner name: JAPAN NUCLEAR CYCLE DEVELOPMENT INSTITUTE, JAPAN Effective Date: Jan 25, 1999 |
Feb 10, 1998 | PD | Priority Date |

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