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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8004029

Type

Invention Patent

Filing

06/27/1980

Publication

-
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Progress at the INPI

  1. Filing06/27/80
  2. Publication
  3. Examination02/22/83
  4. Allowance07/08/86
  5. Grant09/29/87
  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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Solvay & Cie.

BE

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Inventors

N. E. (pessoa física)

Technical data

IPC Classification

C25B 11/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

07/02/1985

RPI 767

Conhecimento de parecer técnico

#7.1

01/31/1984

RPI 693

Solicitação de exame técnico

#4.1

02/22/1983

RPI 644

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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SEM TITULO

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