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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8105352

Type

Invention Patent

Filing

08/21/1981

Publication

05/18/1982

Progress at the INPI

  1. Filing08/21/81
  2. Publication05/18/82
  3. Examination09/14/82
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KLOECKNER WERKE AG

Inventors

B. K. (pessoa física)

V. L. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

14.1

07/29/1986

RPI 823

Conhecimento de parecer técnico

#7.1

10/08/1985

RPI 781

Exigência - art. 36 da LPI

#6.1

02/26/1985

RPI 749

Solicitação de exame técnico

#4.1

09/14/1982

RPI 621

Publicação do pedido de patente

#3.1

05/18/1982

RPI 604

Carta-patente expirada

#21.1

Patente extinta em 21/08/96

08/19/2008

RPI 1963

Pedido de licença compulsória

#20.1

07/24/1990

RPI 1025

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