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Official data from INPI

APARELHAGEM DE IGNIÇÃO A PLASMA.

Em AnáliseInvention Patent

Application data

Number

PI8701423

Type

Invention Patent

Filing

03/27/1987

Publication

07/12/1988

Progress at the INPI

  1. Filing03/27/87
  2. Publication07/12/88
  3. Examination10/24/89
  4. Allowance06/15/93
  5. Grant11/30/93
  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

Cummins Engine Company, Inc.

US

See this company's full portfolio

Inventors

L. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

946.150 · 12/23/1986

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

07/12/1988

RPI 925

Pedido de patente depositado

#2.1

07/07/1987

RPI 872

Carta-patente expirada

#21.1

Patente extinta em 27/03/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/30/1993

RPI 1200

Notificação para pagamento de retribuição

#13.1

10/26/1993

RPI 1195

Deferimento

#9.1

06/15/1993

RPI 1176

Exigência - art. 36 da LPI

#6.1

12/08/1992

RPI 1149

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