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Official data from INPI

OBTURADOR E TAMPA ESPECIAIS PARA REGISTRO

Em AnáliseInvention Patent

Application data

Number

PI8601419

Type

Invention Patent

Filing

03/31/1986

Publication

11/03/1987

Progress at the INPI

  1. Filing03/31/86
  2. Publication11/03/87
  3. Examination03/29/88
  4. Allowance07/18/89
  5. Grant03/20/90
  6. Terminated12/31/96

The patent was granted on 03/20/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia de Saneamento de Minas Gerais - Copasa

MG, BR

See this company's full portfolio

Inventors

P. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/14/1989

RPI 995

Deferimento

#9.1

07/18/1989

RPI 978

Solicitação de exame técnico

#4.1

03/29/1988

RPI 910

Publicação do pedido de patente

#3.1

11/03/1987

RPI 889

Pedido de patente depositado

#2.1

10/21/1986

RPI 835

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

03/20/1990

RPI 1010

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