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Official data from INPI

PROCESSADOR DE DADOS DIGITAIS EXCITADOS POR DADOS E PROCESSO

Concessão AnuladaInvention Patent

Application data

Number

PI7500898

Type

Invention Patent

Filing

02/28/1974

Publication

-

Progress at the INPI

  1. Filing02/28/74
  2. Publication
  3. Examination
  4. Allowance05/03/83
  5. Grant03/27/84
  6. Expired08/03/93

The letters patent expired on 08/03/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/19/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BURROUGHS CORP

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Inventors

A. D. (pessoa física)

B. R. (pessoa física)

D. L. (pessoa física)

H. E. (pessoa física)

L. D. (pessoa física)

T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

06/19/1984

RPI 713

Concessão da patente

#16.1

03/27/1984

RPI 701

110

01/17/1984

RPI 691

Notificação para pagamento de retribuição

#13.1

09/20/1983

RPI 674

Recurso

#12.1

08/23/1983

RPI 670

Deferimento

#9.1

05/03/1983

RPI 654

8.1

03/22/1983

RPI 648

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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