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Official data from INPI

CHAPELETA DE BLOQUEIO OU CHAPELETA DE RETENCAO

ConcedidaInvention Patent

Application data

Number

PI8206184

Type

Invention Patent

Filing

10/23/1981

Publication

09/20/1983

Progress at the INPI

  1. Filing10/23/81
  2. Publication09/20/83
  3. Examination08/27/85
  4. Allowance06/09/87
  5. Grant11/24/87
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SCHMITZ & SCHULTE [DE]

Inventors

M. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Notificação para pagamento de retribuição

#13.1

09/29/1987

RPI 884

Republicação - classificação IPC

#15.11

06/09/1987

RPI 868

Deferimento

#9.1

06/09/1987

RPI 868

Exigência - art. 36 da LPI

#6.1

10/21/1986

RPI 835

Solicitação de exame técnico

#4.1

08/27/1985

RPI 775

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

12/14/1982

RPI 634

Carta-patente expirada

#21.1

Patente extinta em 22/10/97

08/19/2008

RPI 1963

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