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Official data from INPI

CENTRO DE USINAGEM

ConcedidaUtility Model

Application data

Number

MU6500271

Type

Utility Model

Filing

03/12/1985

Publication

10/21/1986

Progress at the INPI

  1. Filing03/12/85
  2. Publication10/21/86
  3. Examination04/22/87
  4. Allowance03/28/89
  5. Grant08/29/89
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Brevet Burkhardt - Máquinas de Precisão Ltda.

SP, BR

See this company's full portfolio

Inventors

B. K. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Deferimento

#9.1

03/28/1989

RPI 962

14.4

09/01/1987

RPI 880

Solicitação de exame técnico

#4.1

04/22/1987

RPI 861

Publicação do pedido de patente

#3.1

10/21/1986

RPI 835

Pedido de patente depositado

#2.1

05/21/1985

RPI 761

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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