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Official data from INPI

PREPOLÍMERO TERMINADO EM ISOCIANATO CONTENDO ÁCIDO; PREPOLÍMERO TERMINADO EM ISOCIANATO CONTENDO SAL E PROCESSO PARA SUA FABRICAÇÃO; PROCESSO PARA A FABRICAÇÃO DE UM POLÍMERO; E PREPOLÍMERO

ArquivadaInvention Patent

Application data

Number

PI9002952

Type

Invention Patent

Filing

06/22/1990

Publication

08/20/1991

Progress at the INPI

  1. Filing06/22/90
  2. Publication08/20/91
  3. Abandoned03/30/93
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/17/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

N. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

370.722 · 06/23/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

12/17/1996

RPI 1359

Exigência - art. 36 da LPI

#6.1

03/26/1996

RPI 1321

Solicitação de exame técnico

#4.1

03/30/1993

RPI 1165

Publicação do pedido de patente

#3.1

08/20/1991

RPI 1081

Pedido de patente depositado

#2.1

11/20/1990

RPI 1042

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