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Official data from INPI

PROCESSO PARA PREPARAÇAO DE UMA COMPOSIÇÃO NORMALMENTE LÍQUIDA ESTÁVEL DE POLÍMERO/POLIOL E PROCESSO PARA A PRODUÇÃO DE POLIURETANO

Em AnáliseInvention Patent

Application data

Number

PI8404821

Type

Invention Patent

Filing

09/25/1984

Publication

08/13/1985

Progress at the INPI

  1. Filing09/25/84
  2. Publication08/13/85
  3. Examination10/27/87
  4. Allowance07/11/89
  5. Grant03/20/90
  6. In force09/25/04

The patent was granted on 03/20/1990 and is in force until 09/25/2004. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:09/25/2004

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Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

G. T. (pessoa física)

US

K. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

536.315 · 09/27/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/14/1989

RPI 995

Deferimento

#9.1

07/11/1989

RPI 977

Exigência - art. 36 da LPI

#6.1

02/08/1989

RPI 955

Exigência - art. 36 da LPI

#6.1

07/19/1988

RPI 926

Solicitação de exame técnico

#4.1

10/27/1987

RPI 888

3.4

09/24/1985

RPI 779

Publicação do pedido de patente

#3.1

08/13/1985

RPI 773

Pedido de patente depositado

#2.1

12/04/1984

RPI 737

18.9

09/10/1996

RPI 1345

Anuidade - prazo legal encerrado

#18.2

05/14/1996

RPI 1328

Concessão da patente

#16.1

03/20/1990

RPI 1010

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