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Official data from INPI

CILINDRO E GRUPO DE CILINDROS

ConcedidaInvention Patent

Application data

Number

PI8300701

Type

Invention Patent

Filing

02/10/1983

Publication

09/18/1984

Progress at the INPI

  1. Filing02/10/83
  2. Publication09/18/84
  3. Examination07/22/86
  4. Allowance03/07/89
  5. Grant09/26/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Toho Yogyo Co., Ltd.

JP

Inventors

M. K. (pessoa física)

JP

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Deferimento

#9.1

03/07/1989

RPI 959

Solicitação de exame técnico

#4.1

07/22/1986

RPI 822

Publicação do pedido de patente

#3.1

09/18/1984

RPI 726

Pedido de patente depositado

#2.1

03/29/1983

RPI 649

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: D01H 1/04; B32B 1/10; B21B 27/02.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 10/02/98

07/01/2008

RPI 1956

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