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Official data from INPI

CHAVE MECÂNICA.

ConcedidaInvention Patent

Application data

Number

PI8401512

Type

Invention Patent

Filing

04/02/1984

Publication

11/05/1985

Progress at the INPI

  1. Filing04/02/84
  2. Publication11/05/85
  3. Examination12/15/87
  4. Allowance08/23/88
  5. Grant07/25/89
  6. Terminated05/07/96

The patent was granted on 07/25/1989 and later terminated for failure to pay the annuities. The technology is in the public domain 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

Dresser Indústria e Comércio LTDA - Divisão Wayne.

RJ, BR

Inventors

O. M. (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

12/13/1988

RPI 947

Deferimento

#9.1

08/23/1988

RPI 931

Solicitação de exame técnico

#4.1

12/15/1987

RPI 895

Publicação do pedido de patente

#3.1

11/05/1985

RPI 785

Pedido de patente depositado

#2.1

05/14/1985

RPI 760

Anuidade - prazo legal encerrado

#18.2

05/07/1996

RPI 1327

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