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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent
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Application data

Number

PI7903424

Type

Invention Patent

Filing

05/31/1979

Publication

-
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Progress at the INPI

  1. Filing05/31/79
  2. Publication
  3. Examination
  4. Allowance05/04/82
  5. Grant11/30/82
  6. Terminated07/27/93

The patent was granted on 11/30/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/04/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KemaNord Ab

SE

Inventors

J. T. (pessoa física)

Technical data

IPC Classification

C01B 33/02C22C 33/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

06/04/1985

RPI 763

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

09/08/1982

RPI 620

Deferimento

#9.1

05/04/1982

RPI 602

Anuidade - prazo legal encerrado

#18.2

07/27/1993

RPI 1182

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