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Official data from INPI

FORRO DE DESPRENDIMENTO E PROCESSO DE PREPARAR O MESMO

ConcedidaInvention Patent

Application data

Number

PI8300088

Type

Invention Patent

Filing

01/10/1983

Publication

09/20/1983

Progress at the INPI

  1. Filing01/10/83
  2. Publication09/20/83
  3. Examination10/22/85
  4. Allowance01/10/89
  5. Grant08/29/89
  6. Terminated04/18/95

The patent was granted on 08/29/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

See this company's full portfolio

Inventors

J. E. (pessoa física)

US

K. C. (pessoa física)

US

Technical data

Priority claims

US

338,473 · 01/11/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

04/19/1988

RPI 913

Solicitação de exame técnico

#4.1

10/22/1985

RPI 783

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

02/22/1983

RPI 644

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C09J 7/02.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

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