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Official data from INPI

DISPOSITIVO DOSADOR

Prazo de SigiloInvention Patent

Application data

Number

PI8901498

Type

Invention Patent

Filing

03/22/1989

Publication

10/23/1990

Progress at the INPI

  1. Filing03/22/89
  2. Publication10/23/90
  3. Examination02/19/91
  4. Allowance06/07/94
  5. Grant03/28/95
  6. Expired12/15/09

The letters patent expired on 12/15/2009: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Brasholanda S/A - Equipamentos Industriais

PR, BR

See this company's full portfolio

Inventors

W. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

05/16/1989

RPI 969

Carta-patente expirada

#21.1

Patente extinta em 22/03/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

10/11/1994

RPI 1245

Deferimento

#9.1

06/07/1994

RPI 1227

Exigência - art. 36 da LPI

#6.1

01/25/1994

RPI 1208

Solicitação de exame técnico

#4.1

02/19/1991

RPI 1055

Publicação do pedido de patente

#3.1

10/23/1990

RPI 1038

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