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Official data from INPI

PROCESSO PARA PREPARACAO DE UMA MISTURA EM FIBRAS;MISTURA EM FIBRAS;APERFEICOAMENTO EM COMPOSICAO VULCANIZAVEL DE ELASTOMERO-FIBRA;APERFEICOAMENTO EM COMPOSICAO SIMILAR A BORRACHA

ConcedidaInvention Patent

Application data

Number

PI7801859

Type

Invention Patent

Filing

04/01/1977

Publication

-

Progress at the INPI

  1. Filing04/01/77
  2. Publication
  3. Examination
  4. Allowance05/17/88
  5. Grant11/29/88
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GATES RUBBER CO

See this company's full portfolio

Inventors

J. J. (pessoa física)

P. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

09/22/1987

RPI 883

Exigência - art. 36 da LPI

#6.1

08/30/1983

RPI 671

Exigência - art. 36 da LPI

#6.1

08/31/1982

RPI 619

6.2

01/05/1982

RPI 585

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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