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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent
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Application data

Number

PI8006314

Type

Invention Patent

Filing

10/01/1980

Publication

-
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Progress at the INPI

  1. Filing10/01/80
  2. Publication
  3. Examination01/12/82
  4. Allowance12/11/84
  5. Grant06/25/85
  6. Expired11/14/95

The letters patent expired on 11/14/1995: 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: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kloeckner Cra Patent Gmbh

DE

Inventors

B. K. (pessoa física)

V. L. (pessoa física)

Technical data

IPC Classification

C21C 5/28

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/02/1986

RPI 828

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

06/26/1984

RPI 714

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Solicitação de exame técnico

#4.1

01/12/1982

RPI 586

Carta-patente expirada

#21.1

11/14/1995

RPI 1302

Pedido de licença compulsória

#20.1

05/22/1990

RPI 1019

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