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Official data from INPI

COMPOSIÇÃO DE BORRACHA DE ESTIRENO-BUTADIENO ESTABILIZADA COM GUAIÚLE

DeferidaInvention Patent

Application data

Number

PI8503223

Type

Invention Patent

Filing

07/05/1985

Publication

03/25/1986

Progress at the INPI

  1. Filing07/05/85
  2. Publication03/25/86
  3. Examination05/10/88
  4. Allowance12/05/89
  5. Grant06/26/90
  6. Terminated03/10/92

The patent was granted on 06/26/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Firestone Tire & Rubber Company

US

See this company's full portfolio

Inventors

E. K. (pessoa física)

US

R. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

639.773 · 08/13/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

12/05/1989

RPI 998

Exigência - art. 36 da LPI

#6.1

06/20/1989

RPI 974

Solicitação de exame técnico

#4.1

05/10/1988

RPI 916

Publicação do pedido de patente

#3.1

03/25/1986

RPI 805

Pedido de patente depositado

#2.1

09/17/1985

RPI 778

Anuidade - prazo legal encerrado

#18.2

03/10/1992

RPI 1110

Republicação - classificação IPC

#15.11

06/11/1991

RPI 1071

Concessão da patente

#16.1

06/26/1990

RPI 1024

Notificação para pagamento de retribuição

#13.1

04/10/1990

RPI 1013

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