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Official data from INPI

SEM TITULO

ConcedidaUtility Model

Application data

Number

MU6501614

Type

Utility Model

Filing

10/22/1985

Publication

05/26/1987

Progress at the INPI

  1. Filing10/22/85
  2. Publication05/26/87
  3. Examination09/29/87
  4. Allowance09/06/88
  5. Grant07/25/89
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Duratex Sociedade Anônima

SP, BR

See this company's full portfolio

Inventors

L. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Republicação - classificação IPC

#15.11

01/10/1989

RPI 951

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Republicação - classificação IPC

#15.11

09/27/1988

RPI 936

Deferimento

#9.1

09/06/1988

RPI 933

Solicitação de exame técnico

#4.1

09/29/1987

RPI 884

Publicação do pedido de patente

#3.1

05/26/1987

RPI 866

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

Pedido de licença compulsória

#20.1

05/15/1990

RPI 1018

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