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Official data from INPI

PROCESSO DE DESENGOMAGEM E ALVEJAMENTO DOS TECIDOS

ConcedidaInvention Patent

Application data

Number

PI8200329

Type

Invention Patent

Filing

01/22/1982

Publication

11/23/1982

Progress at the INPI

  1. Filing01/22/82
  2. Publication11/23/82
  3. Examination03/15/83
  4. Allowance09/30/86
  5. Grant06/30/87
  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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P C U K Produits Chimiques Ugine Kuhlmann

FR

See this company's full portfolio

Inventors

J. C. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

81 01202 · 01/23/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Deferimento

#9.1

09/30/1986

RPI 832

Exigência - art. 36 da LPI

#6.1

09/17/1985

RPI 778

Exigência - art. 36 da LPI

#6.1

07/10/1984

RPI 716

Solicitação de exame técnico

#4.1

03/15/1983

RPI 647

Publicação do pedido de patente

#3.1

11/23/1982

RPI 631

Pedido de patente depositado

#2.1

03/16/1982

RPI 595

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: D06L 1/14; D06L 3/08.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 22/01/97

07/01/2008

RPI 1956

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