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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8105351

Type

Invention Patent

Filing

08/21/1981

Publication

05/04/1982

Progress at the INPI

  1. Filing08/21/81
  2. Publication05/04/82
  3. Examination09/06/83
  4. Allowance10/04/88
  5. Grant07/25/89
  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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. K. (pessoa física)

Inventors

H. R. (pessoa física)

M. U. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

102

06/28/1988

RPI 923

Pedido de recurso

#12.3

03/15/1988

RPI 908

11.3

09/08/1987

RPI 881

Exigência - art. 36 da LPI

#6.1

05/27/1986

RPI 814

15.17

12/10/1985

RPI 790

15.9

09/06/1983

RPI 672

Solicitação de exame técnico

#4.1

09/06/1983

RPI 672

Publicação do pedido de patente

#3.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

Patente extinta em 21/08/96

08/19/2008

RPI 1963

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