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Official data from INPI

COMPOSIÇÃO ELASTOMÉRICA.

ConcedidaInvention Patent

Application data

Number

PI8103369

Type

Invention Patent

Filing

05/29/1981

Publication

08/24/1982

Progress at the INPI

  1. Filing05/29/81
  2. Publication08/24/82
  3. Examination05/15/84
  4. Allowance11/03/87
  5. Grant05/31/88
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. F. (pessoa física)

DE

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Inventors

S. K. (pessoa física)

Technical data

Priority claims

DE

P 30 30 014.2 · 08/08/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/03/1987

RPI 889

Conhecimento de parecer técnico

#7.1

04/16/1985

RPI 756

Solicitação de exame técnico

#4.1

05/15/1984

RPI 708

Publicação do pedido de patente

#3.1

08/24/1982

RPI 618

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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