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Official data from INPI

COPOLIMERO, DISPERSAO AQUOSA, PROCESS PARA ESPESSAMENTO DE UM SISTEM AQUOSO, PROCESSO DE UTILIZACAO DE UMA COMPOSICAO, BEM COMO TINTA DE LATEX, DISPERSAO PIGMENTAR, FLUIDO DE PERFURACAO DE POCO DE OLEO, PASTA DE ESTAMPAR TEXTIL, DENTIFRICIO, LOCAO PARA AS MAOS E DETERGENTE

Concessão AnuladaInvention Patent

Application data

Number

PI7908623

Type

Invention Patent

Filing

12/29/1978

Publication

-

Progress at the INPI

  1. Filing12/29/78
  2. Publication
  3. Examination11/09/82
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROHM & HAAS

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Inventors

C. C. (pessoa física)

T. S. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

07/29/1986

RPI 823

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

10/09/1984

RPI 729

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

11/09/1982

RPI 629

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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