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Official data from INPI

DISPOSIÇÕES INTRODUZIDAS EM APARELHO DE DESCARGA PARA SILOS

PublicadaInvention Patent

Application data

Number

PI8903229

Type

Invention Patent

Filing

06/23/1989

Publication

10/03/1989

Progress at the INPI

  1. Filing06/23/89
  2. Publication10/03/89
  3. Examination09/18/90
  4. Allowance08/03/93
  5. Grant05/31/94
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. B. (pessoa física)

SP, BR

Inventors

H. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

10/03/1989

RPI 989

Pedido de patente depositado

#2.1

09/19/1989

RPI 987

Carta-patente expirada

#21.1

Patente extinta em 23/06/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

05/31/1994

RPI 1226

Notificação para pagamento de retribuição

#13.1

01/18/1994

RPI 1207

Deferimento

#9.1

08/03/1993

RPI 1183

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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