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Official data from INPI

REATOR PARA A REAÇÃO DE UMA SOLUÇÃO DE MATERIAL DE POLPA CELULÓSICA

ConcedidaInvention Patent
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Application data

Number

PI8307693

Type

Invention Patent

Filing

03/18/1983

Publication

02/20/1985
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Progress at the INPI

  1. Filing03/18/83
  2. Publication02/20/85
  3. Examination05/05/87
  4. Allowance05/16/89
  5. Grant11/28/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Naco P srl

IT

Inventors

F. N. (pessoa física)

SE

Technical data

IPC Classification

D21C 7/00D21C 9/10

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/12/1989

RPI 986

Deferimento

#9.1

05/16/1989

RPI 969

Exigência - art. 36 da LPI

#6.1

11/16/1988

RPI 943

Solicitação de exame técnico

#4.1

05/05/1987

RPI 863

Notificação de entrada na fase nacional - PCT

#1.3

02/20/1985

RPI 748

Carta-patente expirada

#21.1

Patente extinta em 18/03/98

07/01/2008

RPI 1956

Pedido de licença compulsória

#20.1

03/26/1991

RPI 1060

20.7

03/19/1991

RPI 1059

Pedido de licença compulsória

#20.1

08/21/1990

RPI 1029

20.4

08/14/1990

RPI 1028

20.7

08/14/1990

RPI 1028

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PROCESSO PARA PRODUZIR POLPAS.

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