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Official data from INPI

APERFEICOAMENTO EM COBERTURA DE RECIPIENTE E CONJUNTO DE RECIPIENTE

Em AnáliseInvention Patent

Application data

Number

PI7807079

Type

Invention Patent

Filing

11/07/1977

Publication

-

Progress at the INPI

  1. Filing11/07/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant11/30/82
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DART IND INC

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Inventors

D. R. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

09/02/1986

RPI 828

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

07/06/1982

RPI 611

15.0

03/16/1982

RPI 595

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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