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Official data from INPI

FILTRO TIPO CARTUCHO AUTO LIMPADOR

Em AnáliseInvention Patent
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Application data

Number

PI8700961

Type

Invention Patent

Filing

02/27/1987

Publication

12/22/1987
View on INPI

Progress at the INPI

  1. Filing02/27/87
  2. Publication12/22/87
  3. Examination04/04/89
  4. Allowance03/14/95
  5. Grant10/31/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 04/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C.I.B., Inc.

US

Inventors

B. G. (pessoa física)

US

Technical data

IPC Classification

F01M 11/03

Priority claims

US

835.538 · 03/03/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/04/1989

RPI 963

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Carta-patente expirada

#21.1

Patente extinta em 27/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

10/31/1995

RPI 1300

Notificação para pagamento de retribuição

#13.1

08/29/1995

RPI 1291

Deferimento

#9.1

03/14/1995

RPI 1267

Exigência - art. 36 da LPI

#6.1

10/11/1994

RPI 1245

Exigência - art. 36 da LPI

#6.1

04/19/1994

RPI 1220

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