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Official data from INPI

Fibras e fios acrílicos com dois constituintes.

ConcedidaInvention Patent

Application data

Number

PI7907792

Type

Invention Patent

Filing

11/28/1979

Publication

-

Progress at the INPI

  1. Filing11/28/79
  2. Publication
  3. Examination06/08/82
  4. Allowance02/09/88
  5. Grant09/27/88
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. T. (pessoa física)

FR

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Inventors

A. G. (pessoa física)

C. P. (pessoa física)

M. J. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

78 34054 · 11/30/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

06/07/1988

RPI 920

14.1

04/12/1988

RPI 912

Deferimento

#9.1

02/09/1988

RPI 903

14.7

12/16/1986

RPI 843

14.7

12/09/1986

RPI 842

Exigência - art. 36 da LPI

#6.1

02/22/1983

RPI 644

Solicitação de exame técnico

#4.1

06/08/1982

RPI 607

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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