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Official data from INPI

BROCA COM DOIS OU MAIS GUMES, MUNIDA DE ELEMENTOS CORTANTES TROCÁVEIS

Em AnáliseInvention Patent

Application data

Number

PI8701650

Type

Invention Patent

Filing

04/08/1987

Publication

01/05/1988

Progress at the INPI

  1. Filing04/08/87
  2. Publication01/05/88
  3. Examination10/24/89
  4. Allowance06/04/91
  5. Grant03/31/92
  6. Terminated10/17/95

The patent was granted on 03/31/1992 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gottlieb Guehring, firma alemã

DE

Inventors

H. K. (pessoa física)

DE

J. R. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 11 999.7 · 04/09/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/24/1989

RPI 992

Publicação do pedido de patente

#3.1

01/05/1988

RPI 898

Pedido de patente depositado

#2.1

07/14/1987

RPI 873

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

03/31/1992

RPI 1113

Notificação para pagamento de retribuição

#13.1

10/01/1991

RPI 1087

Deferimento

#9.1

06/04/1991

RPI 1070

Exigência - art. 36 da LPI

#6.1

12/26/1990

RPI 1047

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