Title:
A PROTECTIVE ENVELOPE CLOSURE
Document Type and Number:
WIPO Patent Application WO/2008/011827
Kind Code:
A1
Abstract:
A protective envelope closure consists of a closure flap (2) and an adhesive (3) being uniformly provided on the closure flap, a anti-torn tape (4) also being provided on the closure flap. The anti-torn tape includes at least one line of weakness provided along the sealing direction of the closure flap (2), being arranged as a dotted line. The line of weakness is a short straight line of a thin bar shape, a short broken line, or a cross line composed of two short straight lines. A protective film is provided on the surface of the adhesive. The protective envelope closure may be against criminal opening.
Inventors:
CHEN FENG (CN)
Application Number:
PCT/CN2007/070298
Publication Date:
January 31, 2008
Filing Date:
July 13, 2007
Export Citation:
Assignee:
RUIYUAN FUJIAN ENTPR CO LTD (CN)
CHEN FENG (CN)
CHEN FENG (CN)
International Classes:
B65D27/30; B65D27/14; B65D27/34
Domestic Patent References:
| WO2002020362A1 | 2002-03-14 |
Foreign References:
| CN2166092Y | 1994-05-25 | |||
| CN2567164Y | 2003-08-20 | |||
| CN2162436Y | 1994-04-20 | |||
| CN2213690Y | 1995-11-29 | |||
| GB2394207A | 2004-04-21 | |||
| RU2192998C2 | 2002-11-20 | |||
| US20040251298A1 | 2004-12-16 | |||
| JP2004017644A | 2004-01-22 |
Attorney, Agent or Firm:
INTELLECPRO CHINA LIMITED (Patent Division11/F, Tower C, Five Buildings, 9 Chegongzhuang Dajie, Xicheng District, Beijing 4, CN)
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