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Official data from INPI

APERFEICOAMENTOS EM PORTA-DISCOS

Arquivada/ExtintaUtility Model
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Application data

Number

MU5800956

Type

Utility Model

Filing

07/21/1978

Publication

-
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Progress at the INPI

  1. Filing07/21/78
  2. Publication
  3. Examination
  4. Allowance08/17/82
  5. Grant05/31/83
  6. Expired09/13/88

The letters patent expired on 09/13/1988: 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SOM IND & COM SA

Inventors

C. G. (pessoa física)

Technical data

IPC Classification

A47B 81/06

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

09/13/1988

RPI 934

Concessão da patente

#16.1

05/31/1983

RPI 658

Deferimento

#9.1

08/17/1982

RPI 617

Exigência - art. 36 da LPI

#6.1

03/09/1982

RPI 594

Indeferimento anulado

#9.2.2

03/02/1982

RPI 593

Deferimento

#9.1

12/22/1981

RPI 583

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