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Official data from INPI

EQUIPAMENTO AFINADOR DE VIDROS TUBULARES COM VELOCIDADE REGULÁVEL.

Em AnáliseUtility Model
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Application data

Number

MU6300544

Type

Utility Model

Filing

04/29/1983

Publication

10/18/1983
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Progress at the INPI

  1. Filing04/29/83
  2. Publication10/18/83
  3. Examination01/03/84
  4. Allowance08/12/86
  5. Grant03/31/87
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. D. (pessoa física)

SP, BR

Inventors

D. [. (pessoa física)

Technical data

IPC Classification

C03B 15/14

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

12/08/1987

RPI 894

Concessão da patente

#16.1

03/31/1987

RPI 858

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

Conhecimento de parecer técnico

#7.1

06/11/1985

RPI 764

Solicitação de exame técnico

#4.1

01/03/1984

RPI 689

Publicação antecipada

#3.2

10/18/1983

RPI 678

Pedido de patente depositado

#2.1

06/21/1983

RPI 661

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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