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Official data from INPI

BANHO AQUOSO DE ELETRO REVESTIMENTO PARA DEPOSICAO DE ZINCO E PROCESSO PARA ELETRODEPOSICAO DE ZINCO

ConcedidaInvention Patent

Application data

Number

PI7603836

Type

Invention Patent

Filing

06/16/1975

Publication

-

Progress at the INPI

  1. Filing06/16/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant09/25/84
  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: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

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Inventors

F. J. (pessoa física)

H. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/25/1984

RPI 727

110

06/05/1984

RPI 711

120

05/24/1983

RPI 657

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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