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Official data from INPI

APERFEICOAMENTOS EM CORREIAS TRANSPORTADORAS PARA MATERIAIS A GRANEL

Em AnáliseInvention Patent

Application data

Number

PI7500514

Type

Invention Patent

Filing

01/27/1975

Publication

-

Progress at the INPI

  1. Filing01/27/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant03/30/82
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 06/29/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. D. (pessoa física)

H. N. (pessoa física)

L. A. (pessoa física)

Inventors

D. J. (pessoa física)

H. N. (pessoa física)

L. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.0

06/29/1982

RPI 610

Concessão da patente

#16.1

03/30/1982

RPI 597

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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