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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8004074

Type

Invention Patent

Filing

06/27/1980

Publication

-
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Progress at the INPI

  1. Filing06/27/80
  2. Publication
  3. Examination
  4. Allowance04/17/84
  5. Grant10/30/84
  6. Expired09/12/95

The letters patent expired on 09/12/1995: 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: 10/30/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kemanord AB

SE

Inventors

W. S. (pessoa física)

Technical data

IPC Classification

C25B 1/26C25B 13/00C25B 9/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

08/07/1984

RPI 720

Deferimento

#9.1

04/17/1984

RPI 704

Exigência - art. 36 da LPI

#6.1

11/08/1983

RPI 681

6.2

11/23/1982

RPI 631

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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SEM TITULO

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