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Official data from INPI

ESTRUTURA DE AUTO-TRAVAMENTO PARA CONECTORES CILÍNDRICOS.

ConcedidaInvention Patent

Application data

Number

PI8104818

Type

Invention Patent

Filing

07/22/1981

Publication

03/01/1983

Progress at the INPI

  1. Filing07/22/81
  2. Publication03/01/83
  3. Examination05/07/85
  4. Allowance08/12/86
  5. Grant06/02/87
  6. Expired11/12/96

The letters patent expired on 11/12/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/02/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Telecomunicações Brasileiras S/A - Telebrás

SP, BR

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Inventors

A. F. (pessoa física)

M. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/02/1987

RPI 867

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

Exigência - art. 36 da LPI

#6.1

10/29/1985

RPI 784

Solicitação de exame técnico

#4.1

05/07/1985

RPI 759

Publicação do pedido de patente

#3.1

03/01/1983

RPI 645

Carta-patente expirada

#21.1

11/12/1996

RPI 1354

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