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Official data from INPI

PROCESSO PARA OBTER ABERTURAS DE CANAIS DE LUBRIFICACAO EM PECAS FUNDIDAS

Em AnáliseInvention Patent

Application data

Number

PI7603201

Type

Invention Patent

Filing

05/20/1976

Publication

-

Progress at the INPI

  1. Filing05/20/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/29/82
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. B. (pessoa física)

Inventors

H. T. (pessoa física)

K. M. (pessoa física)

N. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

05/16/1989

RPI 969

20.11

12/06/1983

RPI 685

20.7

09/27/1983

RPI 675

Concessão da patente

#16.1

06/29/1982

RPI 610

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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