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Official data from INPI

LATEX DE POLIMERO HETEROGENIO DE INTERPOLIMEROS RELATIVEMENTE DURO E RELATIVAMENTE MOLES DE UM MONOMERO AROMATICO DE MONOVINILIDENO E UM MONOMERO DIENO CONJUGADO ALIFATICO,E FORMULACOES DE REVESTIMENTO DE PAPEL,CONTENDO TAIS LATEXES

ConcedidaInvention Patent

Application data

Number

PI8103200

Type

Invention Patent

Filing

05/21/1980

Publication

02/09/1982

Progress at the INPI

  1. Filing05/21/80
  2. Publication02/09/82
  3. Examination11/29/83
  4. Allowance12/16/86
  5. Grant08/25/87
  6. Terminated08/30/94

The patent was granted on 08/25/1987 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO

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Inventors

D. L. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Arquivamento - Art. 33 da LPI

#11.1

03/12/1985

RPI 751

Exigência - art. 36 da LPI

#6.1

03/12/1985

RPI 751

Exigência - art. 36 da LPI

#6.1

07/24/1984

RPI 718

Solicitação de exame técnico

#4.1

11/29/1983

RPI 684

Publicação do pedido de patente

#3.1

02/09/1982

RPI 590

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

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