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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8300166

Type

Invention Patent

Filing

01/14/1983

Publication

10/04/1983

Progress at the INPI

  1. Filing01/14/83
  2. Publication10/04/83
  3. Examination12/20/83
  4. Allowance02/12/86
  5. Grant08/26/86
  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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PCUK - Produits Chimiques Ugine Kuhlmann

FR

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Inventors

L. J. (pessoa física)

P. M. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

06/18/1985

RPI 765

Solicitação de exame técnico

#4.1

12/20/1983

RPI 687

Publicação do pedido de patente

#3.1

10/04/1983

RPI 676

Pedido de patente depositado

#2.1

03/01/1983

RPI 645

Carta-patente expirada

#21.1

Patente extinta em 14/01/98

07/01/2008

RPI 1956

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