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Official data from INPI

SISTEMA DE PROTEÇÃO DE CARGA

ConcedidaInvention Patent

Application data

Number

PI8202361

Type

Invention Patent

Filing

04/26/1982

Publication

04/05/1983

Progress at the INPI

  1. Filing04/26/82
  2. Publication04/05/83
  3. Examination04/30/85
  4. Allowance08/12/86
  5. Grant04/28/87
  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.

Talk to a specialist

Latest action published by the INPI: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

US

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Inventors

E. C. (pessoa física)

US

W. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

258.106 · 04/27/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

Republicação - classificação IPC

#15.11

01/07/1986

RPI 794

Exigência - art. 36 da LPI

#6.1

12/10/1985

RPI 790

Solicitação de exame técnico

#4.1

04/30/1985

RPI 758

Publicação do pedido de patente

#3.1

04/05/1983

RPI 650

Pedido de patente depositado

#2.1

06/15/1982

RPI 608

Carta-patente expirada

#21.1

Patente extinta em 26/04/97

07/01/2008

RPI 1956

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