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Official data from INPI

PROCESSO PARA A APLICACAO DE UMA CAMADA PROTETORA SUPERFICIAL CONTENDO OLEO SOBRE CHAPAS MUITO FINAS

Em AnáliseInvention Patent

Application data

Number

PI7804452

Type

Invention Patent

Filing

07/15/1977

Publication

-

Progress at the INPI

  1. Filing07/15/77
  2. Publication
  3. Examination
  4. Allowance09/08/82
  5. Grant04/26/83
  6. Terminated09/18/90

The patent was granted on 04/26/1983 and later terminated for failure to pay the annuities. The technology is in the public domain 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

HOESCH WERKE AG

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Inventors

P. W. (pessoa física)

T. U. (pessoa física)

W. F. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

11/16/1988

RPI 943

Anuidade - prazo legal encerrado

#18.2

10/04/1988

RPI 937

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

09/08/1982

RPI 620

Exigência - art. 36 da LPI

#6.1

04/06/1982

RPI 598

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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