Multifunction anchor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 23, 2010
Grant Date -
Aug 19, 2010
app pub date -
Feb 18, 2009
filing date -
Feb 18, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multifunction anchor comprises an anchor shank to selectively work with one of a dual-fin fluke set, a four-leaf fluke set, and the spear fluke set. A user can choose one of the fluke sets that suits current anchoring conditions to assemble with the anchor shank to anchor a vessel.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MARINE TOWN INC | 21F-2 NO 33 SEC 1 MINSHENG RD BANCIAO CITY TAIPEI COUNTY 408 |
International Classification(s)

- 2009 Application Filing Year
- B63B Class
- 345 Applications Filed
- 231 Patents Issued To-Date
- 66.96 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Tung, Chin-Chung | Taipei Hsien, TW | 29 | 289 |
# of filed Patents : 29 Total Citations : 289 |
Cited Art Landscape
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Patent Citation Ranking
- 2 Citation Count
- B63B Class
- 5.08 % this patent is cited more than
- 15 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

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Jan 12, 2022 | 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 |
Jan 18, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551) year of fee payment: 4 |
Apr 01, 2017 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:MITSUBISHI RAYON CO., LTD.;REEL/FRAME:043750/0834 Owner name: MITSUBISHI CHEMICAL CORPORATION, JAPAN Effective Date: Apr 01, 2017 |
Dec 03, 2014 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jul 29, 2014 | I | Issuance | |
Jul 09, 2014 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Nov 17, 2005 | P | Published | |
Feb 03, 2005 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKANO, TSUNEO;NUMATA, KIHARU;ITOU, AKIHIRO;AND OTHERS;REEL/FRAME:016791/0018 Owner name: MITSUBISHI RAYON CO., LTD., JAPAN Effective Date: Feb 03, 2005 |
Aug 20, 2003 | F | Filing | |
Aug 20, 2002 | PD | Priority Date |

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