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Official data from INPI

RETIFICADORA DE SUPERFÍCIES PLANAS

DeferidaUtility Model

Application data

Number

MU6601022

Type

Utility Model

Filing

06/24/1986

Publication

02/10/1987

Progress at the INPI

  1. Filing06/24/86
  2. Publication02/10/87
  3. Examination04/28/87
  4. Allowance10/10/89
  5. Grant09/24/91
  6. Terminated10/10/95

The patent was granted on 09/24/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. P. (pessoa física)

BR

Metalúrgica Theodoro Pelzer Ltda.

RS, BR

Inventors

C. P. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/10/1989

RPI 990

Solicitação de exame técnico

#4.1

04/28/1987

RPI 862

Publicação antecipada

#3.2

02/10/1987

RPI 851

Pedido de patente depositado

#2.1

02/03/1987

RPI 850

Anuidade - prazo legal encerrado

#18.2

10/10/1995

RPI 1297

Concessão da patente

#16.1

09/24/1991

RPI 1086

14.1

05/07/1991

RPI 1066

Retificação

#15.6

03/05/1991

RPI 1057

Alteração de numeração

#15.1

10/23/1990

RPI 1038

Notificação para pagamento de retribuição

#13.1

02/06/1990

RPI 1005

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