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Official data from INPI

CONTROLE AUTOMATICO DE ALTURA DE MESA DE MAQUINA COLHEDEIRA

Em AnáliseInvention Patent

Application data

Number

PI7901732

Type

Invention Patent

Filing

03/20/1978

Publication

-

Progress at the INPI

  1. Filing03/20/78
  2. Publication
  3. Examination10/20/81
  4. Allowance06/22/82
  5. Grant
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 05/26/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MASSEY FERGUSON SERVICES NV

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

05/26/1987

RPI 866

22.9

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

10/26/1982

RPI 627

Deferimento

#9.1

06/22/1982

RPI 609

Solicitação de exame técnico

#4.1

10/20/1981

RPI 574

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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