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Official data from INPI

VEÍCULO PARA TRANSPORTE A GRANEL DE MATERIAL PULVERIZADO, GRANULADO OU FRAGMENTADO.

ConcedidaInvention Patent

Application data

Number

PI8100873

Type

Invention Patent

Filing

02/13/1981

Publication

08/17/1982

Progress at the INPI

  1. Filing02/13/81
  2. Publication08/17/82
  3. Examination09/24/85
  4. Allowance09/30/86
  5. Grant07/28/87
  6. Expired03/26/96

The letters patent expired on 03/26/1996: 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Welgro B.V.

NL

Inventors

W. T. (pessoa física)

Technical data

IPC Classification

Priority claims

EP

80200648.6 · 07/03/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

03/04/1987

RPI 854

Deferimento

#9.1

09/30/1986

RPI 832

Solicitação de exame técnico

#4.1

09/24/1985

RPI 779

Publicação do pedido de patente

#3.1

08/17/1982

RPI 617

Carta-patente expirada

#21.1

03/26/1996

RPI 1321

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