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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8300879

Type

Invention Patent

Filing

02/24/1983

Publication

11/16/1983

Progress at the INPI

  1. Filing02/24/83
  2. Publication11/16/83
  3. Examination02/07/84
  4. Allowance04/09/85
  5. Grant10/01/85
  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: 10/01/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dr. Johannes Heidenhain Gmbh

DE

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Inventors

E. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/01/1985

RPI 780

Notificação para pagamento de retribuição

#13.1

07/30/1985

RPI 771

Deferimento

#9.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

02/07/1984

RPI 694

Publicação do pedido de patente

#3.1

11/16/1983

RPI 682

Pedido de patente depositado

#2.1

04/12/1983

RPI 651

Carta-patente expirada

#21.1

Patente extinta em 24/02/98

07/01/2008

RPI 1956

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