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Official data from INPI

PROCESSO PARA PRODUÇÃO DE FIBRAS DE POLÍMERO TERMOPLÁSTICO POR FIAÇÃO EM FUSÃO

PublicadaInvention Patent

Application data

Number

PI8805005

Type

Invention Patent

Filing

09/28/1988

Publication

05/02/1989

Progress at the INPI

  1. Filing09/28/88
  2. Publication05/02/89
  3. Examination06/25/91
  4. Allowance01/31/95
  5. Grant07/25/95
  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: 05/02/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

E. K. (pessoa física)

NL

H. B. (pessoa física)

US

J. B. (pessoa física)

NL

P. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

GB

8722967 · 09/30/1987

US

175,024 · 03/30/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/02/1989

RPI 967

Pedido de patente depositado

#2.1

02/14/1989

RPI 956

Carta-patente expirada

#21.1

Patente extinta em 28/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

07/25/1995

RPI 1286

Deferimento

#9.1

01/31/1995

RPI 1261

Exigência - art. 36 da LPI

#6.1

07/05/1994

RPI 1231

Solicitação de exame técnico

#4.1

06/25/1991

RPI 1073

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