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Official data from INPI

FIOS DE POLIESTERES COM DOIS CONSTITUINTES TENDO PROPRIEDADES DE ENCRESPAMENTO MELHORADAS,CONSTITUIDOS DE POLITEREFTALATO DE BUTILENO RETICULADO E SEU PROCESSO DE OBTENCAO

ConcedidaInvention Patent

Application data

Number

PI7701126

Type

Invention Patent

Filing

02/27/1976

Publication

-

Progress at the INPI

  1. Filing02/27/76
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant03/27/84
  6. Expired07/27/93

The letters patent expired on 07/27/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. T. (pessoa física)

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Inventors

B. G. (pessoa física)

H. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

15.0

08/31/1982

RPI 619

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

6.2

01/19/1982

RPI 587

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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