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Official data from INPI

VÁLVULA.

ConcedidaUtility Model

Application data

Number

MU6200760

Type

Utility Model

Filing

05/28/1982

Publication

01/03/1984

Progress at the INPI

  1. Filing05/28/82
  2. Publication01/03/84
  3. Examination08/07/84
  4. Allowance02/12/86
  5. Grant12/30/86
  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.

Talk to a specialist

Latest action published by the INPI: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AMPACO CO. N. V.

Inventors

K. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Republicação - classificação IPC

#15.11

09/24/1985

RPI 779

Exigência - art. 36 da LPI

#6.1

06/25/1985

RPI 766

Solicitação de exame técnico

#4.1

08/07/1984

RPI 720

Publicação do pedido de patente

#3.1

01/03/1984

RPI 689

Pedido de patente depositado

#2.1

07/20/1982

RPI 613

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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