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Official data from INPI

PROCESSO DE ESTABILIZACAO DE TETRACLORETO DE VANADIO E RESPECTIVA COMPOSICAO DE TETRA-CLORETO DE VANADIO ESTABILIZADO

Em AnáliseInvention Patent

Application data

Number

PI7902522

Type

Invention Patent

Filing

05/24/1978

Publication

-

Progress at the INPI

  1. Filing05/24/78
  2. Publication
  3. Examination01/12/82
  4. Allowance02/14/84
  5. Grant09/25/84
  6. Terminated05/17/88

The patent was granted on 09/25/1984 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAUFFER CHEMICAL CO

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Inventors

D. J. (pessoa física)

F. H. (pessoa física)

S. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

08/30/1983

RPI 671

Exigência - art. 36 da LPI

#6.1

11/30/1982

RPI 632

Solicitação de exame técnico

#4.1

01/12/1982

RPI 586

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