(19)
(11) EP 0 331 110 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.05.1990 Bulletin 1990/20

(43) Date of publication A2:
06.09.1989 Bulletin 1989/36

(21) Application number: 89103505.7

(22) Date of filing: 28.02.1989
(51) International Patent Classification (IPC)4: B42D 15/08
(84) Designated Contracting States:
CH DE ES FR LI

(30) Priority: 02.03.1988 IT 1961488
31.03.1988 IT 2004988

(71) Applicant: STEP S.p.A.
I-29100 Piacenza (IT)

(72) Inventor:
  • Ferrari, Mauro
    I-29100 Piacenza (IT)

(74) Representative: Marietti, Giuseppe 
MARIETTI e GISLON S.r.l. Via Larga, 16
20122 Milano
20122 Milano (IT)


(56) References cited: : 
   
       


    (54) Self-enveloping forms


    (57) In a continuous form for correspondence of the self-­enveloping type, each page has, on at least one of its sides, at least one lateral extension (7,7',8,8') containing an area for the application of an adhesive. After having removed the tear-off sections and having folded and closed the page,the part or the parts containing this adhesive area are the only parts which remain, the said parts having been folded and sealed to one or more prefixed corresponding adhesive carrying areas of the page.







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