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Official data from INPI

PROCESSO PARA A PREPARACAO DE PEROLAS DE COPOLIMEROS COM LIGACOES CRUZADAS,DURAS E DISTINTAS

Em AnáliseInvention Patent

Application data

Number

PI7803065

Type

Invention Patent

Filing

05/17/1977

Publication

-

Progress at the INPI

  1. Filing05/17/77
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant12/27/83
  6. Terminated02/25/86

The patent was granted on 12/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROHM & HAAS

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Inventors

H. T. (pessoa física)

P. W. (pessoa física)

P. I. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

02/25/1986

RPI 801

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

16.3

03/20/1984

RPI 700

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

Exigência - art. 36 da LPI

#6.1

10/19/1982

RPI 626

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