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Official data from INPI

INSTALAÇÃO AUTOCENTRALIZADORA PARA ESMERILHAR OS PINOS DE METAL DURO DE BROCAS DE PERFURAÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904607

Type

Invention Patent

Filing

09/13/1989

Publication

04/24/1990

Progress at the INPI

  1. Filing09/13/89
  2. Publication04/24/90
  3. Examination12/04/90
  4. Allowance06/01/93
  5. Grant10/26/93
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C.M.E. Blasting & Mining Equipment Of Canada Ltd.

CA

Inventors

K. M. (pessoa física)

R. S. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

SE

8803684-3 · 10/17/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 13/09/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

10/26/1993

RPI 1195

Deferimento

#9.1

06/01/1993

RPI 1174

Solicitação de exame técnico

#4.1

12/04/1990

RPI 1044

Publicação do pedido de patente

#3.1

04/24/1990

RPI 1015

Pedido de patente depositado

#2.1

02/13/1990

RPI 1006

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