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Official data from INPI

POLIMERO,PREPARACAO E FORMULACOES PARA SUA PREPARACAO,USO PARA PRODUCAO DE MATERIAIS UNIDOS,INTERMEDIARIOS E SUA PREPARACAO

Em AnáliseInvention Patent

Application data

Number

PI8007352

Type

Invention Patent

Filing

03/09/1979

Publication

-

Progress at the INPI

  1. Filing03/09/79
  2. Publication
  3. Examination03/01/83
  4. Allowance09/25/84
  5. Grant04/30/85
  6. Terminated05/17/88

The patent was granted on 04/30/1985 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

MINNESOTA MINING & MFG

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Inventors

A. D. (pessoa física)

H. A. (pessoa física)

T. J. (pessoa física)

Technical data

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

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

01/29/1985

RPI 745

Deferimento

#9.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

03/01/1983

RPI 645

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