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Official data from INPI

REVESTIMENTO PRELIMINAR DE VEDAÇÃO ABRASÍVEL PARA TURBINA A GÁS

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906606

Type

Invention Patent

Filing

12/20/1989

Publication

09/04/1990

Progress at the INPI

  1. Filing12/20/89
  2. Publication09/04/90
  3. Examination02/05/91
  4. Allowance12/05/95
  5. Grant02/25/97
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

C. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

287,221 · 12/21/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 20/12/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

02/25/1997

RPI 1369

Notificação para pagamento de retribuição

#13.1

06/18/1996

RPI 1333

Deferimento

#9.1

12/05/1995

RPI 1305

Solicitação de exame técnico

#4.1

02/05/1991

RPI 1053

Publicação do pedido de patente

#3.1

09/04/1990

RPI 1031

Pedido de patente depositado

#2.1

05/01/1990

RPI 1016

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