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Official data from INPI

APERFEICOAMENTO EM OU RELATIVO A CORPOS OU ELEMENTOS UNITARIOS DE MOAGEM POR REVOLVIMENTO OU IMPACTACAO

Em AnáliseInvention Patent

Application data

Number

PI7600068

Type

Invention Patent

Filing

01/08/1976

Publication

-

Progress at the INPI

  1. Filing01/08/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  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: 03/31/1987. 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).

18.1

03/31/1987

RPI 858

Concessão da patente

#16.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

18.4

10/23/1990

RPI 1038

Pedido de licença compulsória

#20.1

08/14/1990

RPI 1028

18.4

04/17/1990

RPI 1014

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