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Official data from INPI

ROLO DE TRANSPORTE E TREM DE ROLOS DE TRANSPORTE

ConcedidaInvention Patent
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Application data

Number

PI8200346

Type

Invention Patent

Filing

01/22/1982

Publication

11/23/1982
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Progress at the INPI

  1. Filing01/22/82
  2. Publication11/23/82
  3. Examination06/14/83
  4. Allowance07/08/86
  5. Grant02/03/87
  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.

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Latest action published by the INPI: 02/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. C. (pessoa física)

JP

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Inventors

K. K. (pessoa física)

JP

T. K. (pessoa física)

JP

Y. S. (pessoa física)

JP

Technical data

IPC Classification

B21B 39/10B65G 39/00

Priority claims

JP

6474/81 · 01/22/1981

JP

6475/81 · 01/22/1981

JP

6476/81 · 01/22/1981

JP

6477/81 · 01/22/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/03/1987

RPI 850

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Republicação - classificação IPC

#15.11

05/21/1985

RPI 761

Exigência - art. 36 da LPI

#6.1

01/08/1985

RPI 742

Solicitação de exame técnico

#4.1

06/14/1983

RPI 660

Publicação do pedido de patente

#3.1

11/23/1982

RPI 631

Pedido de patente depositado

#2.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

Patente extinta em 22/01/97

07/01/2008

RPI 1956

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