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Official data from INPI

GERADOR DE ESPUMA PARA CONCRETO CELULAR

Em AnáliseUtility Model

Application data

Number

MU6500232

Type

Utility Model

Filing

02/26/1985

Publication

09/30/1986

Progress at the INPI

  1. Filing02/26/85
  2. Publication09/30/86
  3. Examination08/30/88
  4. Allowance08/07/90
  5. Grant02/26/91
  6. Expired06/06/95

The letters patent expired on 06/06/1995: 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Forschaum Equipamentos Industriais Ltda

SP, BR

Inventors

D. C. (pessoa física)

BR

F. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/30/1988

RPI 932

14.1

05/17/1988

RPI 917

Publicação do pedido de patente

#3.1

09/30/1986

RPI 832

Pedido de patente depositado

#2.1

05/21/1985

RPI 761

Carta-patente expirada

#21.1

06/06/1995

RPI 1279

Concessão da patente

#16.1

02/26/1991

RPI 1056

Notificação para pagamento de retribuição

#13.1

11/20/1990

RPI 1042

Deferimento

#9.1

08/07/1990

RPI 1027

Exigência - art. 36 da LPI

#6.1

01/23/1990

RPI 1003

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