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Official data from INPI

PROCESSO PARA PREPARACAO DE UMA FOLHA FIBROSA POR VIA PAPELEIRA,A FIM DE MELHORAR AS LIGACOES E/OU A RETENCAO,FOLHA OBTIDA SEGUNDO ESSE PROCESSO,E SUA APLICACAO

ConcedidaInvention Patent

Application data

Number

PI7903893

Type

Invention Patent

Filing

01/24/1979

Publication

-

Progress at the INPI

  1. Filing01/24/79
  2. Publication
  3. Examination12/15/81
  4. Allowance02/04/86
  5. Grant07/29/86
  6. Expired04/04/95

The letters patent expired on 04/04/1995: 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: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. P. (pessoa física)

Inventors

G. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/29/1986

RPI 823

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/04/1986

RPI 798

Exigência - art. 36 da LPI

#6.1

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

12/15/1981

RPI 582

Carta-patente expirada

#21.1

04/04/1995

RPI 1270

20.11

03/16/1993

RPI 1163

Pedido de licença compulsória

#20.1

10/27/1992

RPI 1143

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