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Official data from INPI

SISTEMA DE POLIMENTO DE LENTES POR CILINDRO NEGATIVO E RODA GIRATORIA

Em AnáliseUtility Model
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Application data

Number

MU6301441

Type

Utility Model

Filing

10/05/1983

Publication

03/20/1984
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Progress at the INPI

  1. Filing10/05/83
  2. Publication03/20/84
  3. Examination06/19/84
  4. Allowance07/14/87
  5. Grant03/29/88
  6. Terminated03/10/92

The patent was granted on 03/29/1988 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

POLY GRAN IND E COMERCIO DE PR [BR]

Inventors

S. D. (pessoa física)

Technical data

IPC Classification

B24B 13/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

11/21/1989

RPI 996

Concessão da patente

#16.1

03/29/1988

RPI 910

Retificação

#15.6

12/01/1987

RPI 893

Retificação

#15.3

10/20/1987

RPI 887

Deferimento

#9.1

07/14/1987

RPI 873

Retificação

#15.6

04/22/1987

RPI 861

Retificação

#15.3

12/30/1986

RPI 845

8.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

10/01/1985

RPI 780

Solicitação de exame técnico

#4.1

06/19/1984

RPI 713

Publicação antecipada

#3.2

03/20/1984

RPI 700

Pedido de patente depositado

#2.1

12/06/1983

RPI 685

Anuidade - prazo legal encerrado

#18.2

03/10/1992

RPI 1110

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