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Official data from INPI

MANDRIL DE PERFURAÇÃO DE ROCHA GIRATÓRIO.

ConcedidaInvention Patent

Application data

Number

PI8404453

Type

Invention Patent

Filing

09/05/1984

Publication

07/30/1985

Progress at the INPI

  1. Filing09/05/84
  2. Publication07/30/85
  3. Examination09/15/87
  4. Allowance03/28/89
  5. Grant09/26/89
  6. Terminated06/20/95

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

De Beers Industrial Diamond Division (Proprietary) Limited

ZA

See this company's full portfolio

Inventors

P. B. (pessoa física)

ZA

Technical data

IPC Classification

Priority claims

ZA

83/6604 · 09/06/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/18/1989

RPI 978

Deferimento

#9.1

03/28/1989

RPI 962

Exigência - art. 36 da LPI

#6.1

09/20/1988

RPI 935

Solicitação de exame técnico

#4.1

09/15/1987

RPI 882

Publicação do pedido de patente

#3.1

07/30/1985

RPI 771

Pedido de patente depositado

#2.1

11/13/1984

RPI 734

Anuidade - prazo legal encerrado

#18.2

06/20/1995

RPI 1281

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