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Official data from INPI

ELEMENTO DE ATRITO ADAPTADO PARA USO EM EMBREAGEM E FIO DOBRADO ADAPTADO PARA USO NA FABRICAÇÃO DOS ELEMENTOS DE ATRITO

DeferidaInvention Patent

Application data

Number

PI8503253

Type

Invention Patent

Filing

07/08/1985

Publication

12/09/1986

Progress at the INPI

  1. Filing07/08/85
  2. Publication12/09/86
  3. Examination12/13/88
  4. Allowance10/31/89
  5. Grant06/26/90
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

R. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

676.144 · 11/29/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/31/1989

RPI 993

Solicitação de exame técnico

#4.1

12/13/1988

RPI 947

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

09/17/1985

RPI 778

Carta-patente expirada

#21.1

Patente extinta em 08/07/2000

07/15/2008

RPI 1958

Pedido de licença compulsória

#20.1

06/02/1992

RPI 1122

Concessão da patente

#16.1

06/26/1990

RPI 1024

Notificação para pagamento de retribuição

#13.1

03/06/1990

RPI 1008

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