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Official data from INPI

PROCESSO PARA REFINAÇÃO DE POLPAS DE CELULOSES.

ConcedidaInvention PatentPCT · SE1979000073

Application data

Number

PI7908799

Type

Invention Patent

Filing

03/29/1979

Publication

-

PCT

SE1979000073

Progress at the INPI

  1. Filing03/29/79
  2. Publication
  3. Examination04/13/82
  4. Allowance09/18/84
  5. Grant03/26/85
  6. Expired05/09/95

The letters patent expired on 05/09/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Modo Chemetics AB.

SE

Inventors

L. J. (pessoa física)

S. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

01/15/1985

RPI 743

Deferimento

#9.1

09/18/1984

RPI 726

6.3

01/31/1984

RPI 693

Exigência - art. 36 da LPI

#6.1

10/11/1983

RPI 677

Solicitação de exame técnico

#4.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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