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Official data from INPI

PROCESSO PARA A PREPARACAO DE COPOLIMEROS DE ESTIRENO-BUTADIENO

Em AnáliseInvention Patent

Application data

Number

PI7902061

Type

Invention Patent

Filing

04/04/1979

Publication

-

Progress at the INPI

  1. Filing04/04/79
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant10/01/85
  6. In force04/04/99

The patent was granted on 10/01/1985 and is in force until 04/04/1999. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:04/04/1999

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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

SIR SOC ITALIANA RESINE SPA

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Inventors

B. B. (pessoa física)

C. G. (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

10/01/1985

RPI 780

110

06/04/1985

RPI 763

Recurso

#12.1

08/09/1983

RPI 668

Deferimento

#9.1

04/19/1983

RPI 652

22.2

09/11/1990

RPI 1032

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