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Official data from INPI

COMPOSICOES DE PIGMENTOS

ConcedidaInvention Patent

Application data

Number

PI7900272

Type

Invention Patent

Filing

01/17/1978

Publication

-

Progress at the INPI

  1. Filing01/17/78
  2. Publication
  3. Examination
  4. Allowance10/13/87
  5. Grant06/14/88
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BAYER AG

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Inventors

H. W. (pessoa física)

K. G. (pessoa física)

T. L. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/14/1988

RPI 921

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/13/1987

RPI 886

Republicação - classificação IPC

#15.11

09/01/1987

RPI 880

Exigência - art. 36 da LPI

#6.1

05/05/1987

RPI 863

Conhecimento de parecer técnico

#7.1

10/04/1983

RPI 676

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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