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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE POLIISOCIANATOS, POLIISOCIANATOS E APLICAÇÃO

Em ExigênciaInvention Patent
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Application data

Number

PI8500463

Type

Invention Patent

Filing

02/01/1985

Publication

09/17/1985
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Progress at the INPI

  1. Filing02/01/85
  2. Publication09/17/85
  3. Examination10/27/87
  4. Allowance10/30/90
  5. Grant05/28/91
  6. Terminated12/24/96

The patent was granted on 05/28/1991 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: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

DE

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Inventors

D. K. (pessoa física)

DE

G. G. (pessoa física)

H. H. (pessoa física)

Technical data

IPC Classification

C08G 18/72

Priority claims

DE

P 34 03 500.1 · 02/02/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

03/21/1989

RPI 961

Solicitação de exame técnico

#4.1

10/27/1987

RPI 888

Publicação do pedido de patente

#3.1

09/17/1985

RPI 778

Pedido de patente depositado

#2.1

04/23/1985

RPI 757

Anuidade - prazo legal encerrado

#18.2

12/24/1996

RPI 1360

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

02/13/1991

RPI 1054

Deferimento

#9.1

10/30/1990

RPI 1039

Exigência - art. 36 da LPI

#6.1

03/06/1990

RPI 1008

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