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Official data from INPI

REVELADORES FORMADORES DE CORANTES

ConcedidaInvention Patent

Application data

Number

PI8107469

Type

Invention Patent

Filing

03/17/1980

Publication

02/09/1982

Progress at the INPI

  1. Filing03/17/80
  2. Publication02/09/82
  3. Examination10/04/83
  4. Allowance12/17/85
  5. Grant06/24/86
  6. Terminated02/04/92

The patent was granted on 06/24/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

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Inventors

S. G. (pessoa física)

T. T. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

Exigência - art. 36 da LPI

#6.1

04/23/1985

RPI 757

Exigência - art. 36 da LPI

#6.1

06/05/1984

RPI 711

Solicitação de exame técnico

#4.1

10/04/1983

RPI 676

Notificação de entrada na fase nacional - PCT

#1.3

02/09/1982

RPI 590

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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