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Official data from INPI

MECANISMO DE BOMBEAMENTO DE UM COMPOSTO; CAIXA COLETORA; E MÁQUINA DE REVESTIMENTO DE CARNE

Em AnáliseInvention Patent

Application data

Number

PI8703944

Type

Invention Patent

Filing

07/31/1987

Publication

07/19/1988

Progress at the INPI

  1. Filing07/31/87
  2. Publication07/19/88
  3. Examination10/24/89
  4. Allowance08/07/90
  5. Grant02/26/91
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Townsend Engineering Company

US

See this company's full portfolio

Inventors

R. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

941.376 · 12/15/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/24/1989

RPI 992

Publicação do pedido de patente

#3.1

07/19/1988

RPI 926

Pedido de patente depositado

#2.1

10/20/1987

RPI 887

Carta-patente expirada

#21.1

Patente extinta em 31/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

02/26/1991

RPI 1056

Notificação para pagamento de retribuição

#13.1

11/20/1990

RPI 1042

Deferimento

#9.1

08/07/1990

RPI 1027

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