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Official data from INPI

RETENTOR DE ESCÓRIA DO FINAL DE VAZAMENTO DE UM CONVERSOR LD.

ConcedidaInvention Patent

Application data

Number

PI8105550

Type

Invention Patent

Filing

09/01/1981

Publication

04/05/1983

Progress at the INPI

  1. Filing09/01/81
  2. Publication04/05/83
  3. Examination02/28/84
  4. Allowance11/12/85
  5. Grant06/24/86
  6. In force09/01/01

The patent was granted on 06/24/1986 and is in force until 09/01/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:09/01/2001

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Latest action published by the INPI: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

B. S. (pessoa física)

G. C. (pessoa física)

L. (pessoa física)

P. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/15/1986

RPI 808

Deferimento

#9.1

11/12/1985

RPI 786

Republicação - classificação IPC

#15.11

05/07/1985

RPI 759

Exigência - art. 36 da LPI

#6.1

02/26/1985

RPI 749

Solicitação de exame técnico

#4.1

02/28/1984

RPI 697

Publicação do pedido de patente

#3.1

04/05/1983

RPI 650

Pedido de patente depositado

#2.1

10/19/1982

RPI 626

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