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Official data from INPI

ROLO PARA FITA PARA UM CASSETE DE FITA

Em AnáliseInvention Patent

Application data

Number

PI8405191

Type

Invention Patent

Filing

10/15/1984

Publication

08/27/1985

Progress at the INPI

  1. Filing10/15/84
  2. Publication08/27/85
  3. Examination08/11/87
  4. Allowance09/04/90
  5. Grant03/26/91
  6. Terminated05/14/96

The patent was granted on 03/26/1991 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: 08/11/1987. 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. W. (pessoa física)

US

R. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

542.416 · 10/17/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

08/27/1985

RPI 775

Pedido de patente depositado

#2.1

12/26/1984

RPI 740

Anuidade - prazo legal encerrado

#18.2

05/14/1996

RPI 1328

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

12/18/1990

RPI 1046

Deferimento

#9.1

09/04/1990

RPI 1031

Exigência - art. 36 da LPI

#6.1

05/01/1990

RPI 1016

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