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Official data from INPI

MONTAGEM DE SELO PERFURÁVEL PARA ÓLEO

PublicadaInvention Patent

Application data

Number

PI8803211

Type

Invention Patent

Filing

06/29/1988

Publication

02/14/1989

Progress at the INPI

  1. Filing06/29/88
  2. Publication02/14/89
  3. Examination03/26/91
  4. Allowance03/10/92
  5. Grant11/24/92
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

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Inventors

J. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

078,981 · 07/29/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/14/1989

RPI 956

Pedido de patente depositado

#2.1

11/29/1988

RPI 945

Carta-patente expirada

#21.1

Patente extinta em 29/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/24/1992

RPI 1147

Republicação - classificação IPC

#15.11

10/06/1992

RPI 1140

Notificação para pagamento de retribuição

#13.1

07/28/1992

RPI 1130

Deferimento

#9.1

03/10/1992

RPI 1110

Solicitação de exame técnico

#4.1

03/26/1991

RPI 1060

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