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Official data from INPI

MEIO DE DESIDRATAÇÃO PARA FORMAÇÃO DE FOLHAS DE PAPEL

PublicadaInvention Patent

Application data

Number

PI8801159

Type

Invention Patent

Filing

03/15/1988

Publication

10/18/1988

Progress at the INPI

  1. Filing03/15/88
  2. Publication10/18/88
  3. Examination11/13/90
  4. Allowance03/28/95
  5. Grant10/31/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nordiskafilt Ab

SE

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Inventors

C. H. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8701205-0 · 03/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/18/1988

RPI 939

Pedido de patente depositado

#2.1

07/19/1988

RPI 926

Carta-patente expirada

#21.1

Patente extinta em 15/03/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/31/1995

RPI 1300

Republicação - classificação IPC

#15.11

10/24/1995

RPI 1299

Deferimento

#9.1

03/28/1995

RPI 1269

Exigência - art. 36 da LPI

#6.1

04/26/1994

RPI 1221

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

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