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Official data from INPI

COMPOSICAO DE POLICARBONATO RETARDANTE DE CHAMA,NAO OPACA

Em AnáliseInvention Patent

Application data

Number

PI7607309

Type

Invention Patent

Filing

10/29/1975

Publication

-

Progress at the INPI

  1. Filing10/29/75
  2. Publication
  3. Examination
  4. Allowance02/09/82
  5. Grant10/26/82
  6. Terminated05/21/85

The patent was granted on 10/26/1982 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: 05/21/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. E. (pessoa física)

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Inventors

M. V. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/21/1985

RPI 761

Cessão de direito de exploração

#22.1

11/20/1984

RPI 735

Concessão da patente

#16.1

10/26/1982

RPI 627

Notificação para pagamento de retribuição

#13.1

06/08/1982

RPI 607

Deferimento

#9.1

02/09/1982

RPI 590

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