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Official data from INPI

AQUECEDOR DE PALHETA PARA DESCONGELAMENTO DE UMA PALHETA PROPULSORA DE MOTOR DE AERONAVE

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101228

Type

Invention Patent

Filing

03/27/1991

Publication

11/05/1991

Progress at the INPI

  1. Filing03/27/91
  2. Publication11/05/91
  3. Examination04/05/94
  4. Allowance11/22/94
  5. Grant07/25/95
  6. Expired06/22/10

The letters patent expired on 06/22/2010: 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: 06/22/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

J. C. (pessoa física)

US

J. D. (pessoa física)

US

L. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

502,392 · 03/30/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/03/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

03/28/1995

RPI 1269

Deferimento

#9.1

11/22/1994

RPI 1251

Solicitação de exame técnico

#4.1

04/05/1994

RPI 1218

Publicação do pedido de patente

#3.1

11/05/1991

RPI 1092

Pedido de patente depositado

#2.1

09/24/1991

RPI 1086

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