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Official data from INPI

COMPOSICAO LIGANTE E PROCESSO DE PRODUCAO DE ARTIGOS UNIDOS COM A DITA COMPOSICAO

Em AnáliseInvention Patent
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Application data

Number

PI7606063

Type

Invention Patent

Filing

09/15/1975

Publication

-
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Progress at the INPI

  1. Filing09/15/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Expired07/20/93

The letters patent expired on 07/20/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/28/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. D. (pessoa física)

F. I. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.9

06/28/1983

RPI 662

22.0

08/31/1982

RPI 619

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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