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Official data from INPI

FUNCIONAMENTO DO SISTEMA DE REVERSAO

ConcedidaUtility Model
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Application data

Number

MU6300515

Type

Utility Model

Filing

04/20/1983

Publication

11/27/1984
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Progress at the INPI

  1. Filing04/20/83
  2. Publication11/27/84
  3. Examination03/05/85
  4. Allowance09/15/87
  5. Grant07/26/88
  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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IMECOTRON IND MECANICA DE COMA [BR]

Inventors

M. P. (pessoa física)

Technical data

IPC Classification

E05F 7/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

03/15/1988

RPI 908

Deferimento

#9.1

09/15/1987

RPI 882

Retificação

#15.6

07/07/1987

RPI 872

Retificação

#15.3

02/17/1987

RPI 852

Republicação - classificação IPC

#15.11

05/27/1986

RPI 814

Exigência - art. 36 da LPI

#6.1

05/20/1986

RPI 813

Exigência - art. 36 da LPI

#6.1

09/24/1985

RPI 779

Solicitação de exame técnico

#4.1

03/05/1985

RPI 750

Publicação do pedido de patente

#3.1

11/27/1984

RPI 736

14.7

04/10/1984

RPI 703

Pedido de patente depositado

#2.1

06/14/1983

RPI 660

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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