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Official data from INPI

APERFEIÇOADO SINCROFASEADOR DE PROPULSOR E LÓGICA DO MODO

Em AnáliseInvention Patent

Application data

Number

PI8604681

Type

Invention Patent

Filing

09/29/1986

Publication

06/23/1987

Progress at the INPI

  1. Filing09/29/86
  2. Publication06/23/87
  3. Examination08/22/89
  4. Allowance06/25/91
  5. Grant04/28/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

F. N. (pessoa física)

US

R. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

781.586 · 09/30/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/22/1989

RPI 983

Publicação do pedido de patente

#3.1

06/23/1987

RPI 870

Pedido de patente depositado

#2.1

03/24/1987

RPI 857

Carta-patente expirada

#21.1

Patente extinta em 29/09/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

04/28/1992

RPI 1117

Notificação para pagamento de retribuição

#13.1

10/22/1991

RPI 1090

Deferimento

#9.1

06/25/1991

RPI 1073

Exigência - art. 36 da LPI

#6.1

11/20/1990

RPI 1042

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