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Official data from INPI

COMPOSICAO TERMOPLASTICA DE ELASTOMERO

ConcedidaInvention Patent

Application data

Number

PI7902300

Type

Invention Patent

Filing

04/17/1978

Publication

-

Progress at the INPI

  1. Filing04/17/78
  2. Publication
  3. Examination11/24/81
  4. Allowance11/03/87
  5. Grant05/31/88
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNIROYAL INC

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Inventors

R. R. (pessoa física)

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

Exigência - art. 36 da LPI

#6.1

03/10/1987

RPI 855

Conhecimento de parecer técnico

#7.1

12/06/1983

RPI 685

6.2

06/01/1982

RPI 606

Solicitação de exame técnico

#4.1

11/24/1981

RPI 579

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

Pedido de licença compulsória

#20.1

02/26/1991

RPI 1056

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