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Official data from INPI

APERFEICOAMENTO EM PROCESSO DA FABRICACAO DE ESFERAS MACICAS VAZADAS DE LIGA DE FERRO,E,EM RESPECTIVO CONJUNTO DE MOLDACAO

Em AnáliseInvention Patent

Application data

Number

PI7600069

Type

Invention Patent

Filing

01/08/1976

Publication

-

Progress at the INPI

  1. Filing01/08/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/27/83
  6. Expired07/27/93

The letters patent expired on 07/27/1993: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. A. (pessoa física)

Inventors

A. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

10/31/1989

RPI 993

Concessão da patente

#16.1

12/27/1983

RPI 688

110

09/27/1983

RPI 675

120

05/25/1982

RPI 605

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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