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Official data from INPI

APERFEIÇOAMENTO EM CÂMARA DE FERRO DE ENGOMAR A VAPOR D'ÁGUA

Em AnáliseInvention Patent

Application data

Number

PI8101614

Type

Invention Patent

Filing

03/19/1981

Publication

10/06/1981

Progress at the INPI

  1. Filing03/19/81
  2. Publication10/06/81
  3. Examination12/06/83
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Expired09/24/96

The letters patent expired on 09/24/1996: 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: 09/23/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Black & Decker Inc

US

General Electric Company

US

See this company's full portfolio

Inventors

G. H. (pessoa física)

Technical data

IPC Classification

Priority claims

US

137.122 · 04/04/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/23/1986

RPI 831

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

01/08/1985

RPI 742

Republicação - classificação IPC

#15.11

11/27/1984

RPI 736

Exigência - art. 36 da LPI

#6.1

06/12/1984

RPI 712

Solicitação de exame técnico

#4.1

12/06/1983

RPI 685

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

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