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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE PRÉ-POLÍMEROS DE URETANO COM BAIXOS NÍVEIS DE DIISOCIANATO DE TOLUENO RESIDUAL

ArquivadaInvention Patent

Application data

Number

PI9004691

Type

Invention Patent

Filing

09/20/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/20/90
  2. Publication09/10/91
  3. Abandoned12/10/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/01/1998. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Air Products And Chemicals, Inc

US

See this company's full portfolio

Inventors

A. S. (pessoa física)

B. T. (pessoa física)

R. M. (pessoa física)

W. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

412.953 · 09/26/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

11.31

09/01/1998

RPI 1445

Exigência - art. 36 da LPI

#6.1

02/12/1997

RPI 1367

Solicitação de exame técnico

#4.1

12/10/1991

RPI 1097

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

04/02/1991

RPI 1061

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