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Official data from INPI

PROCESSO E DISPOSITIVO PARA A DISSOCIAÇÃO HIDROLÍTICA DE CELULOSE.

ConcedidaInvention Patent

Application data

Number

PI8207282

Type

Invention Patent

Filing

12/14/1982

Publication

10/18/1983

Progress at the INPI

  1. Filing12/14/82
  2. Publication10/18/83
  3. Examination01/24/84
  4. Allowance03/01/88
  5. Grant09/27/88
  6. Terminated06/26/90

The patent was granted on 09/27/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Werner & Pfleiderer

Werner & Pfleiderer GmbH

DE

Inventors

H. K. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 31 49 587.7 · 12/15/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

06/21/1988

RPI 922

Deferimento

#9.1

03/01/1988

RPI 906

Exigência - art. 36 da LPI

#6.1

03/04/1986

RPI 802

Exigência - art. 36 da LPI

#6.1

06/04/1985

RPI 763

Solicitação de exame técnico

#4.1

01/24/1984

RPI 692

Publicação do pedido de patente

#3.1

10/18/1983

RPI 678

Pedido de patente depositado

#2.1

02/08/1983

RPI 642

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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