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Official data from INPI

COMPOSICOES A BASE DE PVC ESTABILIZADAS TERMICAMENTE

ConcedidaInvention Patent

Application data

Number

PI7902867

Type

Invention Patent

Filing

05/12/1978

Publication

-

Progress at the INPI

  1. Filing05/12/78
  2. Publication
  3. Examination11/03/81
  4. Allowance09/06/88
  5. Grant04/25/89
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. I. (pessoa física)

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Inventors

T. J. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/25/1989

RPI 966

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Exigência - art. 36 da LPI

#6.1

02/17/1988

RPI 904

Exigência - art. 36 da LPI

#6.1

05/05/1987

RPI 863

6.2

05/25/1982

RPI 605

Solicitação de exame técnico

#4.1

11/03/1981

RPI 576

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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