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Official data from INPI

APERFEICOAMENTOS EM MAQUINA CORTADORA DE GRAMA

Arquivada/ExtintaUtility Model

Application data

Number

MU5701568

Type

Utility Model

Filing

12/01/1977

Publication

-

Progress at the INPI

  1. Filing12/01/77
  2. Publication
  3. Examination
  4. Allowance03/22/83
  5. Grant09/25/84
  6. Expired08/16/88

The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ZANNONI METALURG LTD

Inventors

B. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

08/16/1988

RPI 930

20.7

01/06/1987

RPI 846

20.4

12/30/1986

RPI 845

Cessão de direito de exploração

#22.1

09/02/1986

RPI 828

Concessão da patente

#16.1

09/25/1984

RPI 727

133

05/15/1984

RPI 708

Recurso

#12.1

08/23/1983

RPI 670

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

Exigência - art. 36 da LPI

#6.1

02/24/1982

RPI 592

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