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Official data from INPI

Processo e aparelho para soldagem de multiplos codões de duas peças de trabalho.

Em AnáliseInvention Patent
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Application data

Number

PI7908300

Type

Invention Patent

Filing

12/18/1979

Publication

-
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Progress at the INPI

  1. Filing12/18/79
  2. Publication
  3. Examination
  4. Allowance01/25/83
  5. Grant07/26/83
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Burmeister & Wain A/S

Inventors

H. E. (pessoa física)

Technical data

IPC Classification

B23K 9/18

Priority claims

DK

5700/78 · 12/19/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

09/27/1988

RPI 936

20.7

03/05/1985

RPI 750

20.4

01/22/1985

RPI 744

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/31/1983

RPI 658

Deferimento

#9.1

01/25/1983

RPI 640

14.1

07/20/1982

RPI 613

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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