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Official data from INPI

CONJUNTO RETRO-REFLETOR DE SINALIZACAO E O RESPECTIVO PROCESSO DE PRODUCAO

ConcedidaInvention Patent

Application data

Number

PI7605214

Type

Invention Patent

Filing

08/06/1976

Publication

-

Progress at the INPI

  1. Filing08/06/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant01/26/82
  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: 01/26/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. L. (pessoa física)

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Inventors

E. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/26/1982

RPI 588

Republicação - classificação IPC

#15.11

A classificação anterior era: E01F 9/04

08/16/2016

RPI 2380

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

14.1

04/24/1990

RPI 1015

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