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Official data from INPI

APARELHO DE SOLDAGEM APERFEICOADO

Em AnáliseInvention Patent

Application data

Number

PI8000936

Type

Invention Patent

Filing

02/20/1979

Publication

-

Progress at the INPI

  1. Filing02/20/79
  2. Publication
  3. Examination10/13/82
  4. Allowance02/21/84
  5. Grant08/28/84
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. I. (pessoa física)

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Inventors

M. T. (pessoa física)

R. E. (pessoa física)

T. N. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

08/08/1989

RPI 981

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

06/12/1984

RPI 712

Deferimento

#9.1

02/21/1984

RPI 696

Exigência - art. 36 da LPI

#6.1

08/23/1983

RPI 670

Solicitação de exame técnico

#4.1

10/13/1982

RPI 625

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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