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Official data from INPI

CONEXÃO ÓTICA ROTATIVA E SEU PROCESSO DE MONTAGEM

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904582

Type

Invention Patent

Filing

09/12/1989

Publication

03/19/1991

Progress at the INPI

  1. Filing09/12/89
  2. Publication03/19/91
  3. Examination11/05/91
  4. Allowance05/10/94
  5. Grant01/31/95
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Petróleo Brasileiro S/A - Petrobrás

RJ, BR

Pontifícia Universidade Católica do Rio de Janeiro - PUC/RJ

RJ, BR

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Inventors

J. W. (pessoa física)

BR

R. P. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/09/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

01/31/1995

RPI 1261

Notificação para pagamento de retribuição

#13.1

09/27/1994

RPI 1243

Deferimento

#9.1

05/10/1994

RPI 1223

Solicitação de exame técnico

#4.1

11/05/1991

RPI 1092

Publicação do pedido de patente

#3.1

03/19/1991

RPI 1059

Pedido de patente depositado

#2.1

06/26/1990

RPI 1024

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