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Official data from INPI

PROCESSO PARA O TINGIMENTO DE COURO OU PELES

ConcedidaInvention Patent

Application data

Number

PI8201617

Type

Invention Patent

Filing

03/23/1982

Publication

02/08/1983

Progress at the INPI

  1. Filing03/23/82
  2. Publication02/08/83
  3. Examination04/09/85
  4. Allowance05/10/88
  5. Grant11/29/88
  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.

Talk to a specialist

Latest action published by the INPI: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ciba-Geigy AG

CH

See this company's full portfolio

Inventors

A. P. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

1952/81 · 03/23/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/10/1988

RPI 916

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Publicação do pedido de patente

#3.1

02/08/1983

RPI 642

Pedido de patente depositado

#2.1

05/11/1982

RPI 603

Carta-patente expirada

#21.1

Patente extinta em 23/03/97

07/01/2008

RPI 1956

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