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Official data from INPI

SINALIZADOR DE REDUÇÃO DE FLUXO DE AR EM MÁQUINAS SECADORAS DE PRODUTOS

PublicadaInvention Patent

Application data

Number

PI8903058

Type

Invention Patent

Filing

06/14/1989

Publication

11/14/1989

Progress at the INPI

  1. Filing06/14/89
  2. Publication11/14/89
  3. Examination09/18/90
  4. Allowance06/30/92
  5. Grant04/27/93
  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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. O. (pessoa física)

SP, BR

Inventors

M. O. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

11/14/1989

RPI 995

Pedido de patente depositado

#2.1

08/08/1989

RPI 981

Carta-patente expirada

#21.1

Patente extinta em 14/06/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

11/17/1992

RPI 1146

Deferimento

#9.1

06/30/1992

RPI 1126

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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