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Official data from INPI

MASSAS DE MOLDAÇÃO Á BASE DE POLIÉSTERES TERMOPLÁSTICOS E SEU EMPREGO

ConcedidaInvention Patent

Application data

Number

PI8200432

Type

Invention Patent

Filing

01/26/1982

Publication

11/30/1982

Progress at the INPI

  1. Filing01/26/82
  2. Publication11/30/82
  3. Examination01/22/85
  4. Allowance09/06/88
  5. Grant05/30/89
  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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ciba-Geigy AG

CH

Du Pont de Nemours (Deutschland) GmbH

DE

See this company's full portfolio

Inventors

F. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

CH

512/81-6 · 01/27/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Exigência - art. 36 da LPI

#6.1

03/29/1988

RPI 910

Solicitação de exame técnico

#4.1

01/22/1985

RPI 744

Publicação do pedido de patente

#3.1

11/30/1982

RPI 632

Pedido de patente depositado

#2.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

Patente extinta em 26/01/97

07/01/2008

RPI 1956

Pedido de licença compulsória

#20.1

11/08/1994

RPI 1249

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