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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8102734

Type

Invention Patent

Filing

05/05/1981

Publication

01/26/1982

Progress at the INPI

  1. Filing05/05/81
  2. Publication01/26/82
  3. Examination05/18/82
  4. Allowance05/28/85
  5. Grant11/26/85
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 11/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ANT Nachrichtentechnik Gmbh.

DE

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Inventors

D. E. (pessoa física)

H. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/26/1985

RPI 788

Notificação para pagamento de retribuição

#13.1

09/17/1985

RPI 778

Deferimento

#9.1

05/28/1985

RPI 762

Exigência - art. 36 da LPI

#6.1

07/31/1984

RPI 719

14.1

04/10/1984

RPI 703

Solicitação de exame técnico

#4.1

05/18/1982

RPI 604

Publicação do pedido de patente

#3.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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