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Official data from INPI

APARELHO E PROCESSO PARA REMOVER CRISTAIS DE ESCÓRIA

PublicadaInvention Patent

Application data

Number

PI8700829

Type

Invention Patent

Filing

02/20/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing02/20/87
  2. Publication12/22/87
  3. Examination07/31/90
  4. Allowance07/12/94
  5. Grant03/28/95
  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.

Talk to a specialist

Latest action published by the INPI: 12/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. C. (pessoa física)

US

Inventors

M. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

834.834 · 02/21/1986

US

847.421 · 04/02/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

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 20/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/28/1995

RPI 1269

Notificação para pagamento de retribuição

#13.1

11/08/1994

RPI 1249

Deferimento

#9.1

07/12/1994

RPI 1232

Exigência - art. 36 da LPI

#6.1

10/26/1993

RPI 1195

Solicitação de exame técnico

#4.1

07/31/1990

RPI 1026

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