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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8103743

Type

Invention Patent

Filing

06/12/1981

Publication

03/02/1982

Progress at the INPI

  1. Filing06/12/81
  2. Publication03/02/82
  3. Examination02/07/84
  4. Allowance08/20/85
  5. Grant04/29/86
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Solvay Interox GmbH

DE

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Inventors

D. H. (pessoa física)

D. W. (pessoa física)

F. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

10/23/1984

RPI 731

Solicitação de exame técnico

#4.1

02/07/1984

RPI 694

Publicação do pedido de patente

#3.1

03/02/1982

RPI 593

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

Pedido de licença compulsória

#20.1

02/16/1994

RPI 1211

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