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Official data from INPI

PRENSA E PROCESSO PARA FABRICAR MEMBRANAS E MEMBRANA ELASTICA PARA PRENSAS DE VULCANIZACAO DE PNEUMATICO

Em AnáliseInvention Patent

Application data

Number

PI7700005

Type

Invention Patent

Filing

01/02/1976

Publication

-

Progress at the INPI

  1. Filing01/02/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant08/31/82
  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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MICHELIN & CIE

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Inventors

C. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

11/16/1988

RPI 943

Concessão da patente

#16.1

08/31/1982

RPI 619

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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