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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8008350

Type

Invention Patent

Filing

12/19/1980

Publication

08/03/1982

Progress at the INPI

  1. Filing12/19/80
  2. Publication08/03/82
  3. Examination05/02/84
  4. Allowance05/14/85
  5. Grant11/26/85
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 11/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sintokogio Ltd., companhia japonesa

JP

Inventors

M. K. (pessoa física)

T. S. (pessoa física)

U. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/26/1985

RPI 788

Notificação para pagamento de retribuição

#13.1

09/03/1985

RPI 776

Deferimento

#9.1

05/14/1985

RPI 760

Exigência - art. 36 da LPI

#6.1

12/18/1984

RPI 739

Solicitação de exame técnico

#4.1

05/02/1984

RPI 706

Publicação do pedido de patente

#3.1

08/03/1982

RPI 615

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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