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Official data from INPI

COPULADOR MAGENTA DE 5-PIRAZOLONA DE DOIS EQUIVALENTES,ELEMENTO FOTOGRAFICO,E PROCESSO PARA A FABRICACAO DO DITO COPULADOR

ConcedidaInvention Patent

Application data

Number

PI7801906

Type

Invention Patent

Filing

03/30/1977

Publication

-

Progress at the INPI

  1. Filing03/30/77
  2. Publication
  3. Examination
  4. Allowance04/12/83
  5. Grant10/25/83
  6. Terminated01/28/92

The patent was granted on 10/25/1983 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: 10/25/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

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Inventors

Q. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

08/30/1983

RPI 671

Deferimento

#9.1

04/12/1983

RPI 651

Exigência - art. 36 da LPI

#6.1

10/20/1981

RPI 574

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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