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Official data from INPI

REVESTIMENTO DE METAL/OXIDO DE METAL

ConcedidaInvention Patent

Application data

Number

PI8205984

Type

Invention Patent

Filing

01/04/1982

Publication

01/11/1983

Progress at the INPI

  1. Filing01/04/82
  2. Publication01/11/83
  3. Examination09/25/84
  4. Allowance10/29/86
  5. Grant07/28/87
  6. Terminated02/11/92

The patent was granted on 07/28/1987 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG [US]

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Inventors

C. [. (pessoa física)

D. [. (pessoa física)

S. [. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

03/31/1987

RPI 858

Deferimento

#9.1

10/29/1986

RPI 836

Exigência - art. 36 da LPI

#6.1

02/18/1986

RPI 800

Exigência - art. 36 da LPI

#6.1

08/13/1985

RPI 773

Solicitação de exame técnico

#4.1

09/25/1984

RPI 727

Notificação de entrada na fase nacional - PCT

#1.3

01/11/1983

RPI 638

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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