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Official data from INPI

SISTEMA DE PREPARO DE TINTAS PARA PORCELANA

ConcedidaInvention Patent
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Application data

Number

PI7803792

Type

Invention Patent

Filing

06/14/1978

Publication

-
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Progress at the INPI

  1. Filing06/14/78
  2. Publication
  3. Examination
  4. Allowance07/14/87
  5. Grant04/26/88
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WAKAO & CIA LTD

Inventors

W. Y. (pessoa física)

Technical data

IPC Classification

C09D 3/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

08/09/1983

RPI 668

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

Exigência - art. 36 da LPI

#6.1

06/01/1982

RPI 606

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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