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Official data from INPI

CONTROLADOR DE ENTRADA/SAIDA PARA PROCESSADOR DE DADOS

ConcedidaInvention Patent

Application data

Number

PI7908412

Type

Invention Patent

Filing

12/22/1978

Publication

-

Progress at the INPI

  1. Filing12/22/78
  2. Publication
  3. Examination10/05/82
  4. Allowance06/14/83
  5. Grant11/27/84
  6. Expired05/02/95

The letters patent expired on 05/02/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBM

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Inventors

B. D. (pessoa física)

M. L. (pessoa física)

M. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

15.15

09/18/1984

RPI 726

110

06/19/1984

RPI 713

120

01/31/1984

RPI 693

Recurso

#12.1

08/23/1983

RPI 670

Deferimento

#9.1

06/14/1983

RPI 660

Republicação - classificação IPC

#15.11

05/31/1983

RPI 658

4.1.2

11/30/1982

RPI 632

Solicitação de exame técnico

#4.1

10/05/1982

RPI 624

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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